I've been running an RX 9070XT since close to release... I've also been running PopOS Cosmic Alpha for the past few months and for better game compatibility been sticking close to the latest mainline kernel.
Just yesterday, I tried getting ROCm working to see of I could use StableDiffusion. Well, in the end 6.16 is currently unsupported and after a few hours of fail, I managed to get the in the box kernel module working again and gave up. It is emphatically nice that many/most games now run through Mesa/Vulkan+Proton without issue... but it would be nice to actually be able to use some of the vaulted AI features in AMD's top current card in the leading edge Linux Kernel release with their platform.
Hopefully sooner than later, this will all "just work" mostly and won't be nearly the exercise in frustration for someone who hasn't been actively in the AI culture. I could create a partition for a prior distro/kernel or revert back, but I probably shouldn't have to, in general I tend to expect leading edge releases to work in the Linux ecosystem, or at least relatively quickly patched up.