Interesting. So how are you getting this if there are no bluetooth or network drivers available for the RaspberryPi 4? My RPi4 will recognise smart phone, however will not appear in Network & internet settings. There are no Bluetooth options either.
At RPi4 windows 10 network connections setting find “bluetooth network connection” and double click it. At devices and prints window, select your smart phone and then click “Connect using->access point”(above you smart phone icon). connection complete. (same as PC side).
Yes I did end up trying this with success. Many thanks for your input! My iPhone won’t allow me to tether bluetooth whilst using WiFi. Was hoping to leave old phone at home (on WiFi) and therefore access RPi4 remotely (VNC).
Still looking for any other options or way round my original post of gaining useful network access with RPi4 on Win10, if anyone out there hears my cries!