Read up on what UEFI is. UEFI is not inherently bad, it is a much needed replacement for the decades old slow and crufty BIOS. Basically all my computers have UEFI and they run Linux just fine -- and boot much faster.

Yes, UEFI is actually quite nice. It's not the fault of UEFI that Samsung's hardware programmers suck at what they do and can't produce a motherboard that can boot anything other than Windows.

That said, Secure Boot, on the other hand, is total ****.