If not, would anyone help me build one ?
I was thinking of using git and markdown or google sheets.
Apart from ovbious features, it would need to compare TDP control, and benchmarks.
UPDATE: First version is up, and open to issues & PRs. Please contribute! Link https://github.com/berserkwarwolf/SteamOS-alternatives-overview
ChimeraOS is based on GNOME and immutable: https://github.com/ChimeraOS/chimeraos/wiki/OS-Comparison
That’s the main difference between Holo and Chimera. Their upstream setups with SteamOS are essentially the same.
Also, Nvidia drivers don’t work with any of the extra Valve tools in SteamOS (gamescope), so if you’re going the Nvidia route, I wouldn’t recommend using anything based on SteamOS anyway.