I bought an AMD GPU specifically for use with my Linux workstation and haven't regretted it. Perhaps I simply had bad luck with specific nVidia cards, but the AMD driver is stable in a way the nVidia driver simply never was, especially w/ respect to GPU accelerated desktop environments and screen capture utilities. The only change I made was to switch Arch over to the LTS kernel, as the upstream kernel in Arch isn't quite as battle hardened, and did occasionally require a rollback. That's not something that's likely to affect any other distro though, it's a side effect of Arch's bleeding edge nature.

Anecdotal data and all that. I'm on a Radeon VII, pretty darn solid, will probably continue to choose AMD cards in the future. Wish the Windows driver were a bit more stable, and it's... frankly weird to be saying that in comparison to the Linux driver for the same card.