Find the exact name of your device, either from Control Panel | Devices and Printers or by running ffmpeg:

C:\utils>ffmpeg -list_devices true -f dshow -i dummy -hide_banner
[dshow @ 0000022fd7ac8440] DirectShow video devices (some may be both video and audio devices)
[dshow @ 0000022fd7ac8440] "USB 2.0 CAMERA"

Run ffmpeg to show the dialog:

ffmpeg -f dshow -show_video_device_dialog true -i video="USB 2.0 CAMERA"

I want low quality videoconferencing experience.

Everything / Nothing

"3D scanning with a plain webcam"

"FluidTunes gives you control over your music using only a camera, and your hands, head or feet."

webcam multiplier (+ live effects)

LIVEwebcam of a pigeon nesting outside flight404's window, with a dynamically added fez on the head of the pigeon (and sometimes on his butt)

"Justin wears the camera 24 hours a day, 7 days a week."

it's special.. or weird... but pure genius