As you are using the latest Fedora I suspect you have the latest dependencies, nonetheless, can you confirm you checked the version of:
amd firmware (maybe take directly from Git and copy into your system /lib directory)
https://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.gitmesa
Xorg or Wayland? Try both
Maybe we need to develop a small reporting script that people can use to build a comprehensive report of each GPU test, all dependency versions, checksums, logs, key config values, kernel config, etc