You are discussing on a platform created by a man who praises people like Lenin & Castro. Richard Stallman resigned over some comments on Epstein victims. Free software is like that sometimes.

Obligatory

Passenger information systems in public transport. Some might run some kind of embedded windows, but most run on Linux. Certainly here in Czechia, but I believe it’s common at east throughout the Central Europe.

I would leave out the Serbs, you might get answers you won’t like.

It has an option to use Open RC init system instead of systemd. Systemd probably isn’t as annoying anymore but I can’t be arsed to make the switch.