I believe the BRIO 4K fried my USB ports/hub
I've had this BRIO 4K webcam for quite a few years now (four-ish?) - and, as far as video and meetings and stuff, it's worked great during that time, which is perhaps why it took me so long to clue in...
Right from the start I had issues getting it to work on some USB ports and thought "it's 4K and just needs more bandwidth/power" and moved it around, and I always eventually found a way where it would then work (months), until it eventually didn't.
I had it plugged into my PC first, but eventually it stopped working, and I moved it to another port, and it worked again. Later on I discovered that first port was actually totally dead for anything, but since I was upgrading boards at the time anyway, I didn't pay much attention.
Then I had it plugged into my OWC Thunderbolt 3 dock for a while, but it again stopped working (plugging it in yielded zero response from the computer), and it wouldn't work on my Dell Thunderbolt Dock (WD22TB4), but then it did work when I attached it to my CalDigit Thunderbolt 4 Element Hub (with it's own power supply) and daisy-chained that to the Dell dock, and that worked for over a year - until eventually the USB-A controller in the CalDigit burned out, and now only low-speed USB2 devices (keyboard, mouse) will work on it's USB ports, not any high-speed USB3 ones. So, then I moved the BRIO back to my old OWC dock and it was working again, until now, and the USB in that has just died too (taking the ethernet port with it). I tried putting it on an IO-gear powered USB-C hub, but that didn't work, and then it worked for an hour on my Anker USB hub and then stopped.
And you know what? I don't know why I've kept shuffling this thing around trying to make it work - when looking back, it's clearly an issue, and I feel like it must be drawing too much power or something, and over time fried the USB port on my PC, fried the USB3 controller in my Element Hub, and now fried the USB in my OWC dock. Can I prove that? No. But it's the only common link - and given that it doesn't want to work at all on half the things it's plugged into.... yeah. That's hundreds and hundreds of dollars of equipment, dead, I believe becase of the BRIO, and it sucks, cuz it's all well out of warranty, but I'm still stuck having to replace it. I'm trashing the BRIO, even though it seemingly works on the face of it.