Europe is slowly ditching Microsoft: why it's happening & why it could fail.
(videos.abnormalbeings.space)
None of what you listed is a viable alternative for a myriad of reasons. Only GNU+Linux can replace Windows.
- Android: a mobile OS first and foremost with very limited usability as a general purpose desktop operating system.
- MacOS: hardware from one vendor only.
- *BSD: more niche with even lesser support than GNU+Linux.