Yeah, you were in an unfortunate situation with your graphics card, which the problems stemmed from. Navi support was just added in Linux 5.3 iirc, and that wa

Yeah, you were in an unfortunate situation with your graphics card, which the problems stemmed from. Navi support was just added in Linux 5.3 iirc, and that was just the first draft of the drivers. Then for a while you had to use a specialized mesa build from git. A real headache to be sure, but my Navi is now running swimmingly. I'd probably give it another go after the next PopOS release.