Summary: According to these latest numbers, the world is moving away from Windows and many adopt GNU/Linux; In India, for instance, GNU/Linux has more than four times the market share of Apple, according to the statCounter survey
Because digital connections in third parties aren't assets; they endow another party with tremendous power over people (e.g. MElon getting to decide who can and cannot reach people or what messages to "dim down")
Narrowing down to desktops and laptops, and judging by Web requests that go through Clownflare, many people there use GNU/Linux or Google's 'bastardised' version of it (with spyware preloaded)
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