Here’s a few that I know of. What other things are commonly running Linux that most people may but be aware of?
- Ingenuity (helicopter drone on Mars)
- Smart TVs and streaming devices (Samsung’s TizenOS and Roku devices)
- Smart appliances (Samsung’s smart refrigerator)
- Digital signs and billboards
- My car stereo (Sony XAV-AX6000)
- The Large Hadron Collider
- FAA Air traffic control and radar systems
- Self driving cars
Kindles too. You can jailbreak them and get a shell. They’re so much more useful when they’re jailbroken. They can read multiple other formats, they can get books from a fileserver on your local network, the jailbroken reader app is better, etc.