More recent versions of the GoPro make using them as a webcam fairly simple. All you’ll need is a Mac or Windows device, your smartphone, a USB-C cable, and your GoPro. As of this writing, the Windows version of the GoPro webcam utility is still in beta, so you may need to restart your webcam app or reconnect the USB cable before it’s up and running.
Update your GoPro’s firmware to the latest version. In the GoPro app, select your camera, then tap the three dots in the corner and choose Update Firmware. Follow the steps as needed.
Download and install GoPro’s webcam utility. For it to fully install in Windows, you’ll need to restart your computer.