@lnicaodh If it is any consolation I have 3 Pi4b’s and 1 Pi3B and they all exhibit the same behavior.
Ive done automated installs, manual installs 64 bit, 32 bit, and none of them function by hitting ALT key.
F11 will reduce size on MM screen so you can get at file manager and Shift+CTL+I will launch developer tools.
I suspect as prices continue to drop on Pi’s this is going to show up more and more.