Hey there,
I came across an awesome guide on reddit about how to get AMD HIP for Cycles rendering working for newish cards (my use case was a RX 6700 XT) and it was exactly what I needed: https://www.reddit.com/r/Fedora/comments/v8r31k/how_i_got_blender_32_to_render_with_my_radeon_gpu/
I wrote a regurtitation of it for another forum concerning Fedora, and thought I’d link to both here in case any other Blender users might be struggling with getting HIP to work under Fedora Linux.
Here’s my post: https://discussion.fedoraproject.org/t/blender-amd-and-opencl/40199
Thanks all!