I have an M1 Air that I use for travel and at my days in the office. As I have dual monitors in the office and I wanted to utilize them, I picked up the
dual display docking station from Belkin.
I've only had the setup for a day but so far it is working surprisingly well. I haven't experienced any lag with my Air in clamshell mode and using the dual displays.
I'm not sure if the 16GB of RAM in my Air helps, but I'm impressed so far. It's nice because since it has power delivery it's a single cable setup, with the dock tucked away. I also have my other accessories such as webcam, keyboard, etc., connected to the dock and everything is fine.
One thing I heard is that protected content like Netflix won't play when using DisplayLink, but there are ways to get around it (using Firefox, changing some settings in Chrome, or starting it on the internal screen and moving the content over to the external screen). I don't do this at the office though so it's no big deal for me.
This dock only supports 1080p monitors, though, which is fine for my needs at the office. There are others that support higher resolutions.