When I was at Facebook, they had network to my desk, and it often worked; with 802.1x too (certs automanaged by the corporate spyware). You could get a usb nic out of a vending machine if you had a poorly specified machine that doesn't have an ethernet port. If the vending machine doesn't have a compatible nic, the helpdesk probably would (they did for me, my corporate issued macbook had usb-a and the vending machine only had usb-c nics; I had been using a personal 10/100 usb nic for some time, but needed 1G for something eventually).

Their wifi was pretty ok though. I went a month or so without noticing that my personal usb nic had stopped working after an macOS update (needless to say, I'm not a fan of macs after experience using one at that job).