I've had nothing but issues with AMD on Linux. 7970,280x,rx580 and vega64. All of them had horrible bugs for what I was doing and amd opengl sucks. I eventually got sick of all the hard lock bugs running emulators, and the driver devs not wanting to fix it because Nintendo was their customer.

Then I switched to nvidia and everything just works with similar performance to windows.

Unless installing the drivers is too hard, nvidia is the best was to game on Linux