OnePlus desktop mode with OxygenOS?

Are our only options with OnePlus to either have desktop mode but no control of the phone or ability to edit settings from the headset or a mirror of the display as a tiny phone? I was hoping for something more like the environment advertised to us. Maybe I’m missing something.

Hi, if I am not worong, the Oneplus phone seems not come with desktop mode?

Actually it does (OxygenOS) and it can be forced with dev mode enabled. But you can’t access settings from inside it and it’s very limited. But it’s on the supported devices list for the Nreal Air. In non desktop mode it just looks like a tiny phone screen in the glass but desktop doesn’t do much. So I’m left wondering why I bought the Air assuming my phone would have some environment in them it doesn’t.