Logitech Brio - Pi 3B+ - 4k

Camera model
Logitech Brio

What is the problem?
I seem to be limited to 1920 x 1080

What did you already try to solve it?
Edited octopi.txt camera_usb_options-"-r 3840x2160 -f10"

Logs (/var/log/webcamd.log, syslog, dmesg, ... no logs, no support)

Additional information about your setup (OctoPrint version, OctoPi version, ...)
Running the most current versions of octoprint on a raspberry pi 3b+

Is it possible to take 4k timelapse with this setup?

"-r 3840x2160 -f10" would configure the camera to stream 10 jpg images at 3840x2160 through your raspberry pi. That is a LOT of data, probably way too much. If it works, it would probably require a lower framerate.

Is it possible to have 2 resolutions?
A lower res to monitor with and a higher res for snapshots?

Unfortunately, it is not. This is a limitation of camera drivers; switching between resolutions takes a while, so you can't do it while streaming video.

What about using 2 cameras on a single pi? Can I have one at 4K that is only for snapshots and isn’t sending data the whole time?