The one time i borked the graphics wss the arch firmware thing.
1 weekend away arrived back late sunday to show my daughter her new graphics tab did an update rebooted like aclown and voilla no display.
After that i got rid of arch (endeavour) then in stalled arch (cachy) and life has been good.
Stuff can break and firmwsre changes do it beautifully.
Read the docs
Jackbox 11 steam deck. Maybe does not qualify.