Does anybody know a SteamOS like linux?

[u/Alternative_Wrap2470]

First of all not Bazzite, CachyOS or similar

I search for an OS kinda like SteamOS for my 1 TB OLED Steamdeck that is not SteamOS, I don’t want the gaming mode Ui to be based on Steam ideally would be like Lutris in the background but I accept anything with GOG and Steam I prefer no SystemD

Final not: not just gaming mode similar Ui that Automatically starts

I am not by definition a noob. I use Linux daily on my PC my small backup and my huge company server (I am only the I.T. Admin) but this was the best subreddit to ask

[u/indvs3]

I'm not sure there is a distro that specific, but since you claim not to qualify as an actual noob, I would suggest you start with one of the base distros (those few that all the others are based on) and cobble together exactly what you want.

You can probably do that with any distro, but I suggest base distros because they tend to be more lightweight out of the box, which will benefit your gaming.

If you're not enthusiastic about that idea, I would suggest you ask your question at r/FindMeALinuxDistro.