Hello,
1) Video displays QV issue, not the categories issue. Please, provide the correct video for better understanding.
2) We have improved the code snippet that you used to make QV open by click on the product image. By the way, this is an additional customization service that is outside the scope of our support. We made an exclusion this time but if you have more questions about additional customization then submit an additional customization request to customization team.
3) I don’t see the mentioned issue https://prnt.sc/1ppun16
Regards