I'm confused by this - many mirrorless lenses setup for video work have a zoom switch rather than a zoom ring. An electronic motor ensures smooth zoom. Further

I'm confused by this - many mirrorless lenses setup for video work have a zoom switch rather than a zoom ring. An electronic motor ensures smooth zoom. Furthermore, why are you unable to hold a mirrorless camera as steadily? Something like the Peak Design Clutch strap ought to remedy that I would think? Not to mention cameras like the X-T4 have quite good IBIS built-in to steady out the shot a bit.