[filoleg]

Similarly, I can recommend Reincubate Camo, works on macOS/Linux/Windows. It also has plenty manual camera settings to play around with to get the exact view you want, including focus/white balance/exposure/cropping and tons more that the Apple's official continuity functionality lacks.

Disclaimer: zero affiliation with the product (outside of being their happy customer). I simply found it way before the official continuity feature was even announced for macOS+iOS.