I hadn’t done this yet so your post gave me a kick to try.
I was able to connect my WBPs to my Dell Windows 10 device following normal procedures to connect a Bluetooth audio device.
I also used them for a teams meeting right after and had to set the preference but they worked.
First thought:
IF connected to another device; Did you disconnect the WBPs from any other device that they were/may have been connected to before connecting to the Windows 10 device?