Windows 10 not recognizing microphone in bluetooth headphones

I've tried connecting my AirPods Pro and my Bose QC35 headphones - both of which include a microphone. Windows 10 doesn't seem to pick up the microphone for either of them:

When I try to troubleshoot the Apple audio device above it says not plugged in. And The Bose won't even show up in the recording tab at all, even after selecting show disabled/disconnected devices. Does this have anything to do with the fact that I have an unactivated version of Windows 10? I got the ISO from the official Windows site though. Or could it have something to do with the fact that I'm running Windows 10 from bootcamp on a 2019 Macbook Pro 16"?

Related discussion on Apple forums where nobody found a solution: https://discussions.apple.com/thread/250844237

Solution 1:

Apparently this is a known issue with no current workaround: https://discussions.apple.com/thread/251232512

On the new 16-in MBP (and older T2-controller Macs), this is a known issue. The driver does not seem to recognize the Microphone side on Windows. If I get a chance, I will try to debug the BT layer and see what I can find.