With Pipewire, this seems to have come true in it's entirety. Connecting multipoint Bluetooth headsets to multiple Linux devices works astonishingly well, and I don't think I've ever had a connection drop or encountered a real "bug" with it. The only annoyance is that if you have one device playing audio and another starts playing, it will cut out for a fraction of a second while the headset negotiates it's connection. Besides that it's almost scarily flawless.

There's a whole tangent of complaints I could make about the unified "modern" settings application Windows introduced I think in Windows 10 (maybe 8.1).