I recently bought the Vivomove Sport and turned off gestures completely.
But still, when shaking my wrist, the screen wakes up.
I instantly got SW 3.12 installed, so I dont know if this problem was there in older versions...
But there is a thread thats 2 years (!!!) old, that describes this exact issue:
https://forums.garmin.com/sports-fitness/healthandwellness/f/vivomove-luxe-style/257563/gesture-turned-off-but-screen-waking-up-when-shaking-wrist-after-3-90-vivomove-luxe
Has this problem now returned?