We really need the ability to (video) screen-record a prototype within Figma! (with the option to auto-crop away anything outside the frame). Cropping out multiple prototypes the same way in 3rd party screen capture apps is a very crappy experience!
possible in-between solution: At least make the prototype preview window a real window (also on PC) that can be detected as a separate window by 3rd party screen capture apps. That would save us the cropping!
For the industry-leading experience for prototyping look at Protopie. (I gave this tip before)