What's the Best Distro for Gaming: Manjaro, EndeavourOS, CachyOS, other?

Bazzite or Cachyos. One is designed for Gaming and be harder to break, One is Designed for Performance.
- Bazzite has been perfect for me!

I used EndeavourOS for about a year and a half with no issues at all. Currently testing Nobara as I wanted to try something different. Again, no issues at all.

Whatever works best for you. No distro is fundamentally better suited for gaming than others.

I've been pretty happy with Garuda Linux, Arch based. You'd be fine with near any of them though. Fedora base is amazing and stable and as well as the Arch based systems I use.
In the end it comes down to your hardware and what kind of gaming you want to do.
AMD gpus seem to work the best next with Intel GPUs. Nvidia can certainly work and be stable but has some drawbacks with Wayland from what I remember. (Maybe have been fixed?)
Anticheat is a crap shoot sometimes

I'd stay away from Manjaro, personally. They've had a number of organisational and security fuck-ups that in my opinion makes it hard to take them seriously. Once is forgivable, but when they make the same mistake 3+ times it's just completely unforgivable and unprofessional.
Plus there's the whole "we hold Arch packages back two weeks but not AUR packages" - which means there could be dependency issues if you like installing stuff from AUR. In fairness though, they do request that users do not install AUR software on their site, so people do get warned about that.
Endeavour is good. If I was to go back to an Arch distro, it's what I'd use hands-down. Fundamentally just Arch with a better installer and a nice theme.
I'd also consider something Fedora based, like Fedora (duh), or Bazzite (if you want an atomic/immutable OS). Up-to-date, extensively tested. Bazzite even allows you to install it with out-of-the-box Gamescope support (in simple terms, you get some of the performance options and performance overlays that the steam deck has).
- Manjaro was the first distro I used and it happened twice that it wouldn't boot anymore just because I installed updates. To be fair, I did use the AUR but that's like half the reason to use Arch in the first place IMO.
  After that I installed EndeavourOS and that always worked fine but nowadays I use Fedora.
- I can't disagree. I love Manjaro on one of my devices, a shitty old HP laptop. It runs better than any other distro on it, and it's smooth as butter (even for light gaming) even though the hardware is terrible.
  But.
  I've had to reinstall more than once because things broke while installing upgrades, lol
- Issues with using AUR was enough for me to stay clear and not recommend to people.
  Not that I'd necessarily recommend Arch as something for someone just getting into Linux or anything, but if you're deadset on using something derivative, I would just recommend going with Arch.
  This install scriot makes it no harder to install than anything. And the wiki is robust.
  However, if you don't want to learn how your OS works, and troubleshoot fringe issues, don't use Arch.
  My route into Linux I wouldn't tell others to take.
- If "more stable Arch" is why you're considering Manjaro, consider openSUSE Tumbleweed. They're rolling like Arch, but openQA and rebuilding everything after a compiler update seems to catch a number of issues.
  If you want easier to install Arch, consider EmdeavorOS.
  Manjaro is pretty much never the right answer.
- I can vouch for Fedora, I used plenty of distros from Arch to Ubuntu (and many of it's forks) and even weird outliers like Solus and Fedora is the most boring distro out of all of them, and I mean that in the best way. To quote a certain Todd: "It just works!" Do note you will probably want to enable RPM fusion (basically mandatory if you use nVidia) to get access to useful non open source and license encumbered packages Fedora can't ship by default (like media codecs). Other than that, install Steam and whatever other launchers you want and enjoy a boring, reliable distro.
  
  I switched from EndeavourOS to Fedora too and I love it

Hannah Montana Linux