Pico 4 VR for FS?

Yes, but:

  1. you need a Wifi connection from PC to PICO4 that at least can transfer 800mbit/sec
  2. you need the virtual desktop app on the PICO4 (see pico store, about 20$) and the client software on the pc (free)
  3. you need openXR

As in my above linked post ypu can see it works very well with MSFS …

Oh and of course you need really strong hardware…