hey so I know that to capture video over HDMI I need a capture card or such. and that makes sense. the HDMI ports on my GPU are absolutely not set up for receiving video.. instead, a capture card clones the video and sends it over USB, like a webcam.

but like. let's say I want to capture from a Nintendo Switch.. I'll have it docked into a USB-C dock and get HDMI out.

but what if there was no HDMI middleman?
why can't I just plug my Switch into my Linux computer, USB-C-to-C, and tell my Linux computer to pretend to be a monitor? Shouldn't I be able to get a video signal then, without a capture card? Obviously this doesn't work for things that directly expose HDMI or such. but I feel like it should be allowed for USB-C-only devices!!!