It's also because ARM doesn't have a stable, standard BIOS the way x86 does. ARM is otherwise great, which is why people use it, but it has that one big downsid

It's also because ARM doesn't have a stable, standard BIOS the way x86 does. ARM is otherwise great, which is why people use it, but it has that one big downside. Every phone has a different hardware configuration, and getting that hardware working is always a fiddly bespoke job.