My boss, a landscape/wildlife photographer, just got one of these for use with his MBP 16" M1max:

https://www.amazon.com/LG-Gram-Portable-WQXGA-Monitor/dp/B09TS43YMT/ref=sr_1_1?crid=238ZLD8WWTNCE&keywords=lg+portable+monitor&qid=1682469462&sprefix=lg+portable+monito%2Caps%2C489&sr=8-1

It works fine and has a beautiful display with excellent color. It also has a nice brushed metal housing that looks "very mac-like" rather than cheap plastic. It has a single connection (actually two identical USB-C connectors, one on each side) that gets its video signal and power from the host computer.