>>410562821
The controllers connect to the headset, which can connect to the PC over WiFi or USB. You're good to go.
Oculus/Meta has its own "Platform" on the PC for using their PCVR headsets, which also acts as the server for streaming games to the Quest wirelessly ( Airlink ) or cabled ( Link ). From their platform you can also launch SteamVR games.
The popular third-party Virtual Desktop app ( purchased on the Quest store ) has its own streamer app on the PC. It tends to be more stable, and has less overhead since it talks directly to SteamVR, but you can also use it to play games on the Oculus PC platform games.