"A commodity webcam that puts pixels on a screen for a rock-bottom price."
A '1080p Full HD Webcam' at this price means you are getting a sensor with a 1920x1080 pixel grid, not that the resulting picture will be sharp or clear due to the limitations of the lens and light-gathering capability.
This is for someone who needs a functional camera for non-critical calls, has a budget under $20, and whose laptop camera is broken or non-existent. It fulfills the bare-minimum requirement of making you visible.
Anyone conducting professional remote work, aspiring to stream, or frequently in rooms with imperfect lighting should skip this. A proven model from a known brand for $20-30 more offers a significant jump in image and audio quality.