Who is "they"? Not all game companies can afford to support multiple platforms. You're not entitled for developers to support your preferred platform nor does it make sense yo give a negative review unless they lied in the product description.
Well, first of all I know multi-platform game exists and in some case it will just work out of the box. If it doesn't though, not all companies have the money to hire QA for other platforms or devs to look into issues when stuff goes wrong on Linux. Most game companies fail and run out of cash, only the top survives. They don't have that sort of money laying around to mess around a platform with 2% of users. My previous company certainly loss money on Linux and it was a cause of tension internally.
Secondly, a Minecraft prototype written in c++ and using native OpenGL calls is a terrible example. Even though I understand the dev volunteer his time so money isn't an issue, it would cost a fortune and take years for your average studio to make a game from scratch like this without a game engine.
A bare bone program with rendering and movement is not a game, it's a prototype, and this demonstrate nothing about modern game development. Of course a prototype with nothing but rendering and basic inputs coded in c++ is gonna be multi-platform by default. Hell, it is just code on a repo, you don't even need to build it and test it and deploy it for all platforms as it is up to the user. I don't think you understand the scope of making a fully-completed game. I had dozens of unfinished prototypes on my computer, some of which I made decades ago, some are multi-platform because of the language and tech. Still, this means nothing. It still cost money to support multiple platforms. Only exception nowadays is if your game happen to be compatible with Proton. But yeah, supporting Mac and a bunch of other platforms? It is not free my dude.
I'm all for Linux but IMO it's not quite ready for general public yet. Even distros like Mint are buggy and requires multiple restart every day. I would install it on my dad's computer, but it's not stable enough yet. But I think it's a question of a few years, maybe months before it's there.
EDIT: since people are asking, here are a few bugs that I encounterd over the last week or so. I'm a audio/multimedia worker so obviously I push my computers farther then average user. Still, I'm happy to know many people have manage to get it stable
2 days ago, Ssomething went wrong with cinnamon. At first all the dektop would not appears when waking up from sleep. Had to restart every time or disable sleep. At some point, even restart would bring me a window saying Cinnamon session could not be loaded. I had to reinstall it from Grub. I dont see average users being able to do that. *It's actually not fixed, sleep will mess up Cinnamon.
yesterday, I tried to get my DAW (Reaper) to work with one of my audio interfaces. Drivers would not work correctly, sound was glitching. I messed up with pulse audio for 2 hours but never got it to work.
this morning, te infamous NVIDIA driver wouldn't let me turn off the mirror mode (I have a projector connected to the computer), I had to reboot.
This morning also, I discoverd that Timeshift now only launch from the terminal.
Over the past week, I had to completly reinstall mint, because I installed and uninstalled some audio extension and it messed up the OS. Since then many apps that use to ne there dont show up in the software manager, updating the repo doesn't work, so I had to manually install using terminal.
I've been fighting to get Da vinci resolve to work, tho it's supposed to work natively. Took me around 4-5 hours overall.
I ACTUALLY LOVE LINUX. Indual boot it on my main PC an even installed it on my old 2015 MacBook. I think windows is garbage and full of bloatware, I hate apple but consider macOS a pretty good OS, but I think both are more stable for your average user.
I sincerely wish I could install Mint on my dad's computer but I'm pretty sure he would me need my help at least twice a week . I dont see him or your average user playing with the terminal to install a basic app. I know it's getting closer, but IMO it's not there yet.
I think you might have something wrong with your install. I do some heavy simulations (mostly Thermo and structural stress tests) with old hardware and haven't had to restart ever.
I'm baffled as to how you can have so many problems.
Even distros like Mint are buggy and requires multiple restart every day.
There is something wrong with your installation. Other people just restart to update the kernel often once a week/month. So you might as well tell us what's making you restart Mint so often.
It seems to me that installing external audio drivers and changing Pulseaudio configurations is messing with the OS. Mint uses fairly old, stable packages. Newer distros have Pipewire for audio now. It's a Pulseaudio replacement and might be useful in your case. Have you tried a newer distro? You can try Ubuntu 22.04 or Fedora from a USB stick to see if your audio equipment works out of the box. Then you won't have to fiddle so much with the OS. Fedora Silverblue in particular is immutable and you can reset the OS to any current or previous state with one command, even without Timeshift. Another thing for testing software like DaVinci Resolve is Distrobox containers. You can change whatever you want inside a container and try different distros but you won't break the underlying OS. Hacker's dream.
It seems to me that installing external audio drivers and changing Pulseaudio configurations is messing with the OS. Mint uses fairly old, stable packages. Newer distros have Pipewire for audio now. It's a Pulseaudio replacement and might be useful in your case. Have you tried a newer distro? You can try Ubuntu 22.04 or Fedora from a USB stick to see if your audio equipment works out of the box. Then you won't have to fiddle so much with the OS. Fedora Silverblue in particular is immutable and you can reset the OS to any current or previous state with one command, even without Timeshift. Another thing for testing software like DaVinci Resolve is Distrobox containers. You can change whatever you want inside a container and try different distros but you won't break the underlying OS. Hacker's dream.
What do those distros have that Mint doesn't have? I'm not being rude, it's just that I recently switched from Windows to Linux Mint on my laptop, and I can't imagine what features I'm missing. It's easy to use and does everything I need it to do so far. I haven't experienced any weird bugs yet, and compared to Windows 10 it's a much less frustrating experience overall.
Latest kernel (hence driver), mostly. For most people Linux Mint is great distro that mostly works out of the box. However, for gaming, Linux Mint is one of the weakest since they tend to ship old kernel.
We have to understand that gaming in Linux is in very active development right now. Having out of date kernel can make you unable to use some device, or having less performace than those with latest kernel.
Hovewe, if you are happy with Linux Mint and see no problem, it's okay to stay. It has great community and the developers are awesome.
Considering I've had far fewer problems and frustrations with Mint so far than I had with Windows, this bodes well. I'll save your comment and plan on giving OpenSUSE a try!
Following this advice that came quite often, I've decided to give Fedora a try on my home system. I've read that Nobora is optimised for production and gaming so I've installed it this morning ,triple booting Mint, Win10 and Nobora. It's really well done and comes with Gnome and preinstalled video and steam tools. But I'm still facing one significant issue: the multimedia codes wont install properly. I've just spent 2 hours on this with no luck so far. That means many games that worked out of the box on mint are not curently working...on a gaming oriented distro.... plus video editing doesn't work in Reaper due to Ffmpeg not working.. So yeah, it look quite nice but a lot of troubleshooting required. I'll see how it goes once problems are fixes.
Indeed I manage to manually install most of the codecs from rpmfusion and got Da vinci studio to work ! No video yet in Reaper but I have a few idea to get it working. After a few tweaks, all 5 games I've tried are now working flawless. So far I got one audio interface to work but not another, gonna neee to look into this also. Fedora definitely feels more stable, snappy and workstation oriented than Mint, so I'm probably gonna stick with it in the end. Thanks for recommanding it! Now if I could only get unreal to work with an Oculus Quest 2, I would deleted my windows install and never look back. To might come soon enough. Linux is still a bit challenging, but man, it does rock.