Could you elaborate?

I think you nailed the first paragraph.
My comment is just to remind that OP is already running an immutable distro on the Steam deck. Valve OS is an arch based immutable distro.
Bazzite was assembled, by some very cool people, to bring the same features of the Steam deck using the already tested atomic editions of fedora to a multitude of “PCs”. Saves time on managing the “Linux” system and focuses on the gaming features, apps and drivers.

I’ve been following her for the past year, it’s a pity she doesn’t have a one time contribution scheme set up. I also can’t support everyone but judging from the donations on KDE people do tend to give small amounts and it really helps. Gonna try to contact her and see if she can accept something like that