F8 multimedia key is returning key combination of Super_L + p.
I tried to capture key using xev and getting following output.
KeyPress event, serial 28, synthetic NO, window 0xa00001,
root 0x133, subw 0x0, time 1604437, (565,55), root:(566,75),
state 0x0, keycode 133 (keysym 0xffeb, Super_L), same_screen YES,
XLookupString gives 0 bytes:
XmbLookupString gives 0 bytes:
XFilterEvent returns: False
KeyPress event, serial 29, synthetic NO, window 0xa00001,
root 0x133, subw 0x0, time 1604441, (565,55), root:(566,75),
state 0x40, keycode 33 (keysym 0x70, p), same_screen YES,
XLookupString gives 1 bytes: (70) "p"
XmbLookupString gives 1 bytes: (70) "p"
XFilterEvent returns: False
Not sure because of this or not some Super key combos are not working, but keys are working fine individually.