Android is way above Windows this month (see outline and graph below)
Summary: I've only just noticed that, as far as I'm aware for the first time ever, Android has more than 10% a gap over Windows in terms of market share
From what we can gather, the tram ticketing system does not use Windows; we never saw it crashing or rebooting (or showing some Windows logo) in decades, so we assume it runs some kind of Linux