Hitting fullscreen in a video player still allows for fullscreen
https://source.puri.sm/Librem5/debs/epiphany/-/blob/pureos/byzantium/debian/patches/librem5-Disable-fullscreen.patch does not protect from e.g. toggling fullscreen via the full screen icon e.g. in youtube videos.
(will become a non-issue if we fix #32 but till then it can block ephy usage once fullscreened for users.