Comment by Aurornis

There are several monitors with aspect ratios close to square. I can't tell that exact monitor from the photo but there are several options on the market.

This LG model is popular: https://www.lg.com/us/monitors/lg-28mq780-b-dualup-monitor

Benq announced a new 3:2 monitor today: https://www.benq.com/en-us/monitor/programming/rd280u.html