Question about Dell UltraSharp U2723QE

Yes, this monitor is compatible with your Apple MacBook Air 2023 15" M2. It has a USB-C port that supports DisplayPort Alt mode, so you can connect your MacBook Air directly via USB-C for video, data and up to 90W of charging. It also offers DisplayPort and HDMI connections compatible with the Mac. For optimum connection, use a good quality USB-C cable, ideally the one supplied with the monitor, or a Thunderbolt 3/4 cable. The MacBook Air M2 supports this type of connection for a 4K display at 60 Hz.