I have an lg TV, and have plugged in a Chromecast and a Fire stick. Jellyfin can stream to Chromecast and the app is available on fire TV to connect to your server. I'm switching to a linux based living room PC at the moment for more privacy. I've also tinkered with raspberry Pi in the past and it works well with Jellyfin.
There are so many options, you honestly don't have to be held back by LG.
You can install the Jellyfin app for Android TV and it works really well. Additionally, if you use YouTube, you can sideload SmartTube, which removes ads and auto-skips sponsored segments on some videos.
I have this setup for my parents, if that gives you an idea of how well it works for "non-technical" people. At home I have a similar setup except I'm using the Nvidia shield, which is pricier, but I would recommend it if you have a 4k TV - it uses "AI" (ML, really) to upscale content to 4k and it works really well.
When you say you use this for your parents, are they connecting to your home jellyfin server?
I'm running Plex right now for me and my parents, and I've had to do practically no network shenanigans, it just works. I'm beginning to worry about the direction Plex is going though, so I'm looking into jellyfin. But I've read that configuring remote access can be more complicated.
Yeah, its available to close family. There's a few guides out there on how to set up external access. Might be a bit difficult if you're not familiar with the technical stuff, but you should give it a go anyways if you've got some time to spend.
In my experience the jellyfin app on my LG TV works phenomenally. The media app is absolutely horrendous, it takes several minutes to list media files every time a new folder is opened.
Jellyfin has been a game changer specifically in keeping track of what I've watched and how far into an episode or movie I am. Everything else is a bonus.
There's a Jellyfin app for webos, but the garbage store does not really let them to publish/update it. You can get an up to date version from the store app called Homebrew Channel.
This store app can also handle rooting related things, but that's not needed for Jellyfin, and both can be installed on a nonrooted TV.
That's an other question that the TV will regularly delete these apps until you root it.. but take it as an "evaluation period" haha, if you like the app there are a few ways to make the app persistent.
You can install the jellyfin app for older versions of LG WebOS, but you have to build and install it from a computer. Aside from that minor inconvenience, the app is pretty great.
Do you know if the same is true for Samsung Tizen? I tried to install latest but it failed - was already planning on picking up a Fire stick to run it.