For an online instructor, a dual monitor is a time-saver, having WALI Laptop Holder Trays for 1 Notebook up to 17 inches as shown is a much flexible alternative than a wall mount. When combined with a strong, and steady desk mount stand the preoccupation of breaking a monitor when adjusting viewing is gone.
https://www.amazon.com/WALI-Notebook-Compatible-Capacity-MLP01/dp/B07BHJDVSV