A good webcam, let alone any webcam, is tough to find these days. Just to put a time marker on this post: the coronavirus pandemic has moved much of America’s workforce into a work-from-home environment. With so many people in need of basic tech supplies, demand for webcams has surged, and as supplies dwindle, prices have unsurprisingly skyrocketed.
See The Verge’s guide at How to use your Android or iOS device as a webcam
Better quality than your average webcam.