Hmm how old is your Samsung TV? Jellyfin doesn’t have an official app that you can find in their app store however you can side load it (it’s called jellyfin tizen)
I’ll be honest and it was far from an easy task to side load it and I don’t actually remember how I got it installed in the end but it is doable and works great
Also battle eye works (same with EAC) on Linux you just need to enable it