Apple added robust support for external USB cameras in iPadOS 17, which allows you to connect a USB video class (UVC) camera to your iPad without any adapters or drivers. It's a plug-and-play solution ...
Google Pixel phones work as a USB webcam out of the box, but this feature was incompatible with the Nintendo Switch 2. Now, you can use your Pixel phone as a Switch 2 webcam following a quiet update.