It's very convenient to have mVR automatically hiding the mouse cursor after a few secs in FSE mode, but do you really find it to be mandatory for windowed playback? I mean you could let the movie play as "always on top" in the center of the screen in a small window and do other stuff simultaneously, atm it's a major PITA as the mouse cursor keeps disappearing
And let's not mention ppl with dual screens setups.