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.
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.
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.