Hello,
I made an html5 game using Phaser : https://renar.itch.io/minuit-dix
If i use Google Chrome on my labtop and try to go Fullscreen the game crash and i have this error in the debug console :
Uncaught (in promise) DOMException: screen.orientation.lock() is not available on this device.
Everything work fine on Firefox.
Have a good day !