Hi Roland,
I know am a bit late on reverting here, but was looking at your question and was compelled to post a reply for two reasons:
a) I wanted to know if you succeeded in finding a booking app that solved it for you?
b) I would like to offer help if you haven’t succeeded so far
Am from Servv, booking app on Shopify that’s deeply integrated with Zoom and we are known for our customization prowess. We’d definitely like to help you with this and get it work the way you want.
Looking forward to your reply.
Kind Regards,
Darshin