Yes, I know - there are universal mounts for GoPro. But who wants to be like everyone else..? ;)
Be custom, be unique. Be perfect: Print yourself dedicated GoPro mount for your Xiaomi electric Scooter (Mijia / M365).
There are two recesses where you can glue a rubber pads to improve the grip.
You can use original GoPro thumbscrew, or you can print and make your own as well ;)