I am also experiencing this issue with the only reliable workaround being using linux 6.10.9 with 1:24.2.2-1 (or possibly 1:24.2.7-1, just started testing) versions of mesa, lib32-mesa, vulkan-radeon and lib32-vulkan-radeon (Arch packages, these possibly have different names on Fedora). This has been going on since around August and my frustration has just been deepened, as trying the newest linux 6.12.7 has led to a general feeling of lag throughout the entire system (but mostly with the cursor). One positive thing about the new kernel is that when freezes occurred, the system fully recovers within 10 seconds (unlike the slowdowns, which require hibernation to recover), but they were way more frequent, which I still consider unusable.