I suppose that depends on what you mean by “shit”. They’re the same displays as in retail units. Maybe a generation older. But that’s it. Samsung doesn’t have special lines making different screens for a niche market like this. LG even has OLED Signage Displays.

Most still have the computer built in. But the software is complety different. They have some different features that would make sense for an always on screen in a shop, office, or airport. You can load up a thumb drive with images for the screen to rotate through. Upload new images through WiFi or Ethernet. Use that same network connection to setup, synchronize, and controll dozens of screens, making a video wall. Pretty cool stuff really.

Just none of the spyware. Since there is no individual or household to tie the data to, that part becomes pretty useless.

They’re called Signage Displays.
Most major names you know make them.
They do cost more, but not prohibitively so.