I have successfully used an old Windows PC Logitech Webcam plugged into my Android TV box to monitor with Alfred. My Android TV box is about 2 years old and cost about $35.00 on Amazon. Setup was as easy as plugging the Logitech Webcam into the Android TV box (1 of 4 usb ports) then installing Alfred from the play store. So…if you have an old Webcam and also happen to have an Android TV box you can now put that old Webcam to some use.
Seems this was not my original idea
This person first mentioned this method at this link
I am wondering if using an OTG cable with a different android device could also function.
I will test some devices and update this thread later.