Raistlin

Yeah… That might be something on your end then, because me and my friend both use Linux, and we’ve also had no issue.

Oneplus allows it in its warranty I believe

Ehhh, technically but its hard for them to tell if your able to switch back before turning it in. And if it doesn’t boot then well… It’s not going to be much of an issue then. Also it is a bit legally grey if companies can void you warrenty solely for installing a custom ROM.

;)

I don’t know about most…

Which often means shoving them into massively underfunded institutions, that are full of corruption and abuse, making it a less than ideal alternative.