What is Oculus Air Link?
"Oculus Air Link" is a function of your Oculus Quest 2 that allows you to connect it to a PC without a cable and enjoy VR content on it otherwise meant for the PC. That's right, you don't need any cables at all to do this!
The detailed method is described on the following site, so please check it out.
Detailed instructions on how to use Oculus Air Link to connect your Oculus Quest 2 to your PC