Displaylink Manager 1.6.1 still doesn't support screen rotation
Mine is a 2017 15 inch macbook pro, and os is monterey 12.3.1. I have 2 external monitors lg 27ul500 and hp e243i. I cannot find rotation options in the setting page for both monitors.
Kevin T commented
Linux DisplayLink Manager 5.5-1 allows for screen rotation, but is completely broken