Afaik: no

Remmina doesnt work for you? Or does it suck with multimonitor servers specifically?

I believe most people have kinda given up on hibernation :p

Out of interest, which printer? Anycubic Kobra by any chance?

Regarding the camera: you could probably script this with ffmpeg and let it output the cropped stream as a virtual camera but I am nog going to pretend this sounds very appealing to most people.

Regarding scanning. Maybe you can scan to PDF and then use this: https://github.com/alam00000/bentopdf . does seem to do OCR also but havent tried it myself.