It's also no longer relevant. Nvidia's "open" drivers work just fine, AMD's advantage has been reduced from "works at all" to "works out of the box", since Nvidia's driver has yet to make it into the kernel proper and still requires you to install from your package manager, which is generally a single command anyway.
I like AMD, but I no longer recommend their GPUs even for Linux users. Nvidia's driver works just as well, nvidia-smi is a smoother way to handle power limits and resource management than AMD's method of directly writing values (which looks like "echo 50000000 > /sys/class/drm/card0/device/hwmon/hwmon0/power1_cap", vs. Nvidia's "nvidia-smi -pl 50" for setting the power limit to 50W). AMD can run AI with things like rocm-pytorch, but Nvidia just runs CUDA directly. Nvidia's raster performance is still a bit lower per money spent on the card, but in exchange you get DLSS, which is just better than XeSS and FSR. And because Nvidia are more popular, they get more support.
It's a shame, the market desperately needs AMD and Intel to be competitive.