I tried using bluetooth speakers with Windows. It was fucking atrocious because Windows makes zero effort to compensate for bluetooth lag. Watch a video file or a Youtube video on Android and it inserts a split second of delay into the stream so the video and audio sync up. Windows does nothing of the sort, and it feels like you're watching a dubbed foreign language film.
This does not match my experience using Airpods Pro on Windows.
On the other hand it is seemingly impossible to use the microphone of these Airpods and listen to music at the same time. The quality is atrocious. Something that I assume is possible on a Mac. (Anybody knows of a solution? I read it's because of bluetooth profiles or whatever...)
Regarding quality, what version of Bluetooth did the chip on your windows machine supported and what features? This can be the answer, it usually switches profile when using mic to compensate for latency that gives you shitty audio quad liturgy but it's much better with newer Bluetooth versions in my opinion.
This is where a "funnel" approach can be useful. E.g. you want to measure people on their way to feature X, so you measure the steps before feature X too and see how far down the funnel people get.
When you start to see people going in loops or doing the same things over and over but not quite reaching the destination, then you know you have UX issues.
Of course this is good only for "near misses" - you may have users who don't even know where to start - that is harder to identify.