Just writing this down so I can find it easily in the future. My C922 webcam somehow got stuck at a 640x480 resolution, which looks weird in this day of widescreen monitors. The fix was the following command: v4l2-ctl -d /dev/video2 -v width=1280,height=720
My laptop also has a (bad) integrated webcam so that's why I had to specify /dev/video2. On Fedora I also had to install the v4l-utils package to have v4l2-ctl available.