You can use many Android smartphones as a webcam on Windows 11 (or Windows 10) simply by connecting them to your PC with a standard USB cable and making a small change in the phone's settings. By default, the "stock" version of Android chooses "charging this device via USB" and tops up your battery, but changing it to "webcam" can offer a significant improvement over the standard webcams built into many laptops.
I do it all the time with my Google Pixel, especially when I'm traveling. I can detach the same USB-C cable that was included with the phone from its AC adapter and hook it up to most laptops, and it'll often provide a much better image. On the other hand, some manufacturers, such as Samsung and Motorola, disable the "Use USB for Webcam" feature on their Android devices, which can make the process a little longer.
