The problems first began in the summer, I think: I had moved the review unit Lenovo ThinkPad X1 Carbon (Gen 10) into my home office and was using it while docked to the HP Conferencing Monitor and its built-in USB hub. But things started getting wonky, with weird performance issues, especially with browser tabs. It was so bad, I eventually moved on to the next review laptop, hoping that the issue was with the laptop. But subsequent laptops experienced the same problems.
Today, about three months into this ordeal, I’m not sure what to say, given that I’ve spent a lot of time and effort trying to eliminate potential culprits.