AMD FSR SDK 2.4 is out with FSR Upscaling 4.1.2 for older hardware and Vulkan support
(www.gamingonlinux.com)
Man, if I'd known all this stuff was going to be backported and not exclusive to the 9000 series, I might've gotten a 7900XTX instead of a 9700XT (back when the latter launched and they both cost about the same price).