Can you use two monitors with a Mac book air ?

Mac with M1 supports two monitors, one of which is always the internal monitor.

Mac with an upper-spec M1 Pro, M1 Max, or M1 Ultra, can support more than two.

Connect a display to your Mac - Apple Support

Chico0705 wrote:

I have 2020 MacBook Air M1, I am trying to connect two display monitors but am having a lot of difficulty. Any guidance or suggestions would be truly appreciated, TIA.

You can connect 1 external display. From:

Connect one or more external displays with your Mac - Apple Support

"For Mac computers with the Apple M1 Chip: You can connect a single external display to your Mac. Docks don’t increase the number of displays you can connect."

With DisplayLink software and DisplayLink USB3 adapters. See the following YouTube video

https://m.youtube.com/watch?v=Kq_FyjcAULA