Keyboard lock api

hello, when using brave in full screen mode it doesnt relay keyboard keys to the other side. eg. alt+tab is not captured by brave but instead goes to local pc. i think this feature is called ‘keyboard lock api’. currently ONLY google chrome seems to support this feature. please can brave enable this feature. it is available in the config:brave options. u can ‘enable’ it over there, but it does nothing. it is not enabled.
use case: i am using a pikvm to control a pc remotely. the ip address of the remote pikvm is entered in browser and its control page opens in the browser. then u see remote pikvm/pc screen and go fullsscreen. but brave displays a message ‘keyboard lock is unsupported’. please enable this feature in brave, and brave will become THE BEST BROWSER there is!!!