I am reminded of the ability MANY years ago to write the kernel file directly to a floppy disk, or start of a hard drive and somehow being able to boot that way.
I just can’t recall how I did it, or WHY I did it.
Back when the kernel would fit on a floppy disk. I am truly showing my age.
6 yr old grandson found a box of old floppy disks and was asking what they were. He started stacking them up making card houses and roads for his matchbox cars. Glad he got some use out of those recycled AOL floppies.
there’s also bazzite. (fedora based on uBlue, uses kde)
But I see no reason for myself to switch away from SteamOS.
I am using bazzite on my gaming desktop PC. It does a good job.
If you switch away from steamOS you may not find as many places with people to chat with for support.