I don't think they even have display ports.

Not sure what good would a "gaming driver" do you on those cards.

Same for the opposite. Do the RDNA GFX cards have even hardware for compute? They don't even have tensor cores, so why would AMD invest money into creating a compute driver for hardware that's bad at compute?

> I'm only talking about driver/license locks,

Not "locked" is a big understatement. A driver release for some hardware needs at least some QA, so the assumption that doing this is just "free" because its software is incorrect.