They are, kinda. The default Doom keybinds have ctrl as the fire key, space as the "use" key, and alt as a modifier that turns left/right arrows into strafing.

They are, kinda. The default Doom keybinds have ctrl as the fire key, space as the "use" key, and alt as a modifier that turns left/right arrows into strafing. So when you play like that, your left and right hands are separated.