The cost of moving everything over to AMD is high so it just takes time to get rid of old hardware as a best case scenario.

Totally understand. I hang on to my current GPU for as long as I can before switching to a new one (fiveish years), especially these days.

Having said that, if your goal is to move to Linux for gaming, best to go with a whole AMD setup if possible. Also a distro that updates often but is not bleeding edge. (For me, Fedora/KDE.)

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