The browser route works on anything with a current browser that can stay powered on and online.
Desktop systems
Windows, macOS, Linux, and ChromeOS. These are the most predictable, because you can control sleep, autostart, and kiosk mode.
There is no separate Windows app. Windows uses this route, run in kiosk mode.
Tablets
An iPad can run it, though not every unattended setting has an equivalent on iPadOS. Treat a tablet as a screen someone can reach rather than one mounted out of the way.
Smart TVs
Some televisions have a browser good enough to run it. Whether yours does is a question of that specific set.
If you have a Samsung or LG display, check the platform page first: Samsung Tizen / SSSP and LG webOS have their own routes and their own supported model lists.