Is it possible to turn down the brightness of an external monitor via controls on mu Mac?

When using my old Thunderbolt monitor I loved that I could turn down the brightness from my Mac keyboard, but on the 2 new monitors I've bought recently, I can only turn down the brightness using their clunky on-monitor system.

Are there any 3rd party monitors that:

  1. Ideally can turn down the brightness via software controls on the Mac or
  2. Have Very easy to use and accessible brightness buttons on them?

Solution 1:

You could use the free app MonitorControl to change the brightness on an external monitor with the brightness keys.