Porteus Kiosk VS OpenKiosk

The keyword you're looking for might be 'kiosk'. Nowadays https://porteus-kiosk.org seems to be recommended (but I haven't used it). - Source: Hacker News / 7 months ago

Https://porteus-kiosk.org/ will do everything you need. Chrome or Firefox browser, handles PDF's fine, can be locked down as much as you want and can be completely customized. It's pretty much user proof! You can set it so you can close the browser and it just re-spawns a completely new session. Source: 11 months ago

Https://porteus-kiosk.org/ should do what you need. Source: about 1 year ago

I use porteus-kiosk! For this sort of thing. It's Linux based and will run on modest hardware. Although, I've never used it with a touch screen. So, I can't advise on how well that is supported. Source: about 1 year ago

This is nicely locked down and free to use: https://porteus-kiosk.org/. Source: about 1 year ago

Start with OpenKiosk https://openkiosk.mozdevgroup.com/ and see what else you need after that. Source: about 1 year ago

I'd run the most bare win10. Local login. Install https://openkiosk.mozdevgroup.com/ and set the web page and settings. Then install autologin and auto start the open kiosk app. Source: about 1 year ago

Given your use case, that additional layer of inherent privacy may be welcome, so I thought that while it's not specifically relevant to this sub, you might find it helpful. KioWare doesn't develop for linux, it looks like they have products for Chrome OS, Windows, and Android. A quick search and I came up with OpenKiosk: https://openkiosk.mozdevgroup.com/ which claims to work on linux with Gnome desktop, and I'm... Source: about 2 years ago