Roblox has broken the Alt + Enter functionality (FFlagHandleAltEnterFullscreenManually) in version-f5a60436d48947d3.
Expected behavior
FFlagHandleAltEnterFullscreenManually is a fflag configuration that controls how the game enters fullscreen mode when pressing Alt + Enter. When this is set to false, Roblox lets Windows handle the window, enabling a more Exclusive Fullscreen. Players frequently changed this flag to False to help lower input lag and achieve higher framerates. However, as of the latest version (f5a60436d48947d3), this feature is no longer possible.
Hi there, thanks for the report! We’re looking to restore this fast flag and the old functionality, hopefully in the next release. I’ll update this thread when this change is ready back on Windows!
I see that the flag is back/able to be used! Only issue is that it’s still ‘binded’ to the regular fullscreen functionality (what happens if you where to press F11). Causes the issue of not being able to exit out of the Roblox screen primarily because they’re fighting each other.