i915 0000:00:02.0: GPU HANG: ecode 7:1:85ddfffd
I get this on my Acer C720P using Fedora Rawhide, with any x86_64 kernel in the 5.7 series so far. I get the hang in Openbox and in Sway. I can usually open a terminal, but anything other than that hangs the GUI completely (opening Firefox, Caja, a game, etc)
Kernels in the 5.6 series work fine.