Hello,
Unfortunately, there is no way to replace the featured image with the 360 view and show the gallery over that. You can disable this option https://prnt.sc/1lp20pk and then you’ll get 360 icon https://gyazo.com/d9a81843c6c29026aa9a2dc760b6ee56 and product gallery. In other case you have 360 image but without gallery slider
Regards