You mean the AI Max chips? ROCm works fine there, as long as you're running 6.4.1 or later, no hacks required. I tested on Fedora Rawhide and it was just dnf install rocm.

Yes it does. ROCm support for new chips, due to being available for paid support contracts, comes like 1-2 months after the chip comes out (ie, when they're 100% sure it works with the current, also new, driver).

I'd rather it works and ships late than doesn't work and ships early and then get gaslit about the bugs (lol Nvidia, why are you like this?)