use 2 external monitors with the new MacBook Air

Jenny_girl, I have this question as well.

My research so far:

1. The first external monitor is driven using Apple's USB-C to HDMI adapter (or any of support.apple.com/en-ca/guide/macbook-air/apd8cdd74f57/mac)
2. The 2nd external monitor is driven using 3rd-party DisplayLink drivers: https://www.displaylink.com/downloads/macos (I installed the DisplayLink drivers and my MacBook Air M1 OS 11.2.1 made no complaint.)
3. These drivers need a Displaylink-certified USB-to-HDMI adapter. But which? I found this but haven't ordered yet:

StarTech USB32HD4K USB to HDMI 4K adapter: https://www.startech.com/en-us/audio-video-products/usb32hd4k

And yes as neuroanatomist notes, there is always the possibility with 3rd-party drivers like DisplayLink will be broken by future OS updates, and I would assume the DisplayLink-attached external monitor would perform less well than the other external monitor for video content. And the current DisplayLink driver notes, if I'm interpreting them correctly, suggest the DisplayLink-attached monitor requires the MacBook Air be left open (i.e. not in clamshell mode): https://support.displaylink.com/knowledgebase/articles/1963276-clamshell-and-rotation-support-on-macos-big-sur-11

PS. I had hoped to hear from someone who at least has a working DisplayLink setup on their MacBook Air M1 OS 11.2.1, and could offer advice on which DisplayLink-certified USB-to-HDMI adapter they were using, but no response yet to my query: https://discussions.apple.com/thread/252413951

A DisplayLink dock or adapter, as long as you don’t mind not having hardware acceleration and the potential for a macOS update to bork the drivers and having to wait a few weeks for an update.