Okay. First of all, you can't use two monitors with Macbook Airs. Even if you close the screen. You need Macbook Pros for that. I think the newest MBA M3 also allows two monitors if you close the screen.I'm guessing you guys don't use external monitors? I'm curious how texts will look like due to how the MacOS handles scaling.
Now, there are some ways around that with certain docks and the like, but I always just use one 4k monitor with the MBA's screen as the second, so I haven't had to look into this.
As far as how Mac handles scaling, it's both better than windows and worse. First, it renders everything at 4k, for instance, and then downsamples it to 1080p or 1440p or whatever you choose. This means no tiny text when installing programs, and everything renders very sharp.
However, it sucks with less than 4k resolution--and it does take some getting used to.
Good luck.