After reading this thread and bz 2123998, I had thought that the Fedora
37 mesa packages retained accelerated video for open codecs (for AMD
hardware). However, the Fedora wiki[1] indicates that even open codecs
are no longer accelerated without third party packages. Is that true?
(I don't think that I can test this, since I don't have any AMD GPUs,
only Intel.)
1:
https://fedoraproject.org/wiki/Firefox_Hardware_acceleration#Configure_VA...