M1 MacBook Air and M2 MacBook Air: These models can only natively support one external display. If you need to connect more than one monitor, you will have to use additional hardware and software.

Many MacBook Airs only allow you to connect one external monitor. Here is how to connect two or more displays to boost your productivity even more.

If you see the same thing on both displays, you should start by making sure the displays are Extended instead of Mirroring ...