Crowsnest has no effect on camera settings.

[warped dust]

Klipper does not use webcam.txt at all, as Klipper has nothing to do with the webcam. And crowsnest uses the crowsnest.conf to configure webcam’s

So you either use an older install with an mjpeg streamer or edit always the wrong config file

[runic wave]

should, my camera be using mjpeg streamer or adaptive in the camera settings?