toggle shell script to turn off and on picom for gaming or other fullscreen apps.
drop this into where ever you keep your picom config and make sure you make it executable with chmod +x /path/to/config/toggle_picom.sh
from there you can add the keybinding to whatever DE/WM you use for example for I3wm
bindsym $mod+p exec --no-startup-id ~/.config/picom/toggle_picom.sh
prior to launching something like a game that is at fullscreen just super+p or whatever you have your keybind set to and it will disable picom, when you're done simply hit the keybind again to toggle it back on.