You're right, I watched this youtube video on an expensive brand name item vs several chinese knockoffs and they had the same internals -- but it probably wasn't the Camlink then.
Can't find the video atm, or remember what product it did show, but it was posted in the last 2-3 months and it concerned a similarly on-demand item -- and the "repackaging" brand was respected by creators...
I saw a video where Elgato Camlink opened up, is just a chinese card repackaged with the Elgato logo, 99% similar internally to the cheap knockoffs.
Can't find it again to link it to...