This isn’t an Xbox-specific issue. Once they traffic behaving correctly, it will on all platforms. Whether it’s console of PC is irrelevent.
Even with 3rd party traffic add-ons for PC, said traffic is only injected. Add-one will add more plane types and liveries, and potentially new routes. The AI itself and how planes behave are still controlled by the sim’s code.
So once traffic behaviour and ATC get fixed, it will apply to all platforms automatically.
The only Xbox specific thing with traffic atm is that you don’t have the option of using add-ons like FSLT, AIG, etc. Just rest assured that this doesn’t fix anything on PC either. It just adds a wider variety of broken traffic.