MSnow

Use a 3m Double sided tape on the entire base, then clean the roof and stick it down with good amount of pressure. This is the same stuff they use to affix badging from the factory and most trim on cars. Might affect your range however but it would keep it from moving. Otherwise look into getting a bracket to mount with. 
Search Amazon for this:
3M Exterior Attachment Tape

Nope, that don't work on my win11 pc with a UV-5G Plus even with the new chirp update from 3/22/2024. What I posted earlier will work. Select Baofeng, and GM-5RH Will work.