If the EFI partition truly was at fault, you wouldn’t get into Linux. And if the issue is mounting the efi partition after booting, that shouldn’t be a critical error. So it sounds like something else is at fault IMO

I didn’t even know chimeraOS existed while having known about chimera Linux for years so I guess that shows you how much the name clash matters

NixOS everywhere (except for one server which I have yet to migrate from Rocky to NixOS)