I have been using Bazzite for about 3 months now, it has worked quite well for me on my two desktop systems.
I can not use the SteamOs mode on my Nvidia system, but it still works decently well as a normal desktop running steam.
my AMD desktop system does use the SteamOs look mode.
I was using Holoiso last year, but had numerous issues, so gave up on it. The other similar distros, I recall testing, and not lasting a day with them for various reasons.
So for now Bazzite is my go to.
Side note: just noticed on reddit the /r/Bazzite sub is now banned for being unmoderated.
Not that there was a lot of traffic there anyway, but that is a major issue with Bazzite, it's a bit fringe, and while a lot of silverblue stuff does apply, it's still a small community it seems.
also seen mention of another candidate - Nobara
I have not tried that one.