That doesn't make sense, Windows 11 should be pretty close to the same as Windows 10. I doubt they changed that particular interface any. Is that a space after the H? Why would it be in the base folder on the F drive? Anyway, if there's a space, you need to surround the target only in quotes, and then add the -force line after the quotes.
"F:/Game Path/Game.exe" -force-d3d12
If no space, quotes are not needed.