Office 2019 and earlier are tied to the PC; so, after the trial period, expect it to stop working.

Yes, eventually I saw the "manually" recommendation. The automatic method clearly missed many updates. I think the USB dock is now stable. We only have one like the model you mentioned. We have 3 of the previous model that is a "dock style" but the connectors slide in from the side (very problematic). And we have quite a few more of the older docks with the connector on the bottom of the laptop (very reliable). Perhaps the USB dock is an improvement over the cheesy slide dock. It is hard to judge with just 1 and I am having other driver problems with it (logitech USB camera causing BSOD, not the dock); so, I am probably being overly harsh.

At work lately we have been having difficulty with the newer Lenovo docks. Sometimes the laptops inexplicably go to sleep and won't wake up. Sometimes none of the USB ports work on the dock. Very intermittent and with everyone WFH very hard to debug. I bought a Dell XPS 15 for my SO with the thunderbolt dock and she loves it. She switches it between her work machine and home machine all the time and it works flawlessly. My 2 cents.