Comment by rrix2

That seems like an OS daemon specific to the built in webcam.

https://www.cnet.com/how-to/fix-no-connected-camera-error-on...

> When you run a program that uses your Mac's webcam, OS X will launch a background process called VDCAssistant, which manages the connection and control of the camera. While this process should quit when the program stops using the camera, it may persist if an error occurs, and prevent future connections to the camera, either by the same program or by others.