Dell – Dell Pro 24 Plus QHD Monitor - P2425D
24" monitor, 2560x1440 pixel resolution, maximum refresh rate of 100 Hz.
Video inputs: One DisplayPort (v1.4) and one HDMI port (v1.4).
This monitor has four downstream USB ports (one USB-C port and three USB-A ports). If you want to use them, you will need to run a cable from the monitor's USB-B upstream port to your computer (or to a hub/dock which is attached to your computer). (The monitor comes with a USB-A to USB-B cable but you can get USB-C to USB-B ones.)
Note that the USB-C port on the monitor is only for attaching downstream accessories (e.g., printers, keyboards, mice, drives). You can't use it to carry video to the monitor, or to charge the MacBook Air.
Your M2 MacBook Air should be able to drive this monitor using
- A USB-C to DisplayPort adapter or adapter cable
- A USB-C to HDMI adapter or adapter cable
- A plain USB-C hub or dock
- A Thunderbolt hub or dock
Thunderbolt would only be involved in the latter case (for the connection between the Mac and the hub or dock).
If you're using an adapter (rather than a hub or dock), I'd suggest getting a USB-C to DisplayPort one – because your Mac will be generating video in USB-C (DisplayPort Alt Mode) form. There's no reason to believe that HDMI conversion won't work, but also no particular reason to prefer it.
In any case, your Mac has a limit of one external monitor, whether the lid is open or closed. Also, while it seems possible that you might get a refresh rate higher than 60 Hz, I do not believe that the Technical Specifications for your Mac promise anything higher than that.