I haven’t really used Linux, but I feel it might be useful for a potential project. Is it possible, and how doable is it, to have a password locked admin account and an open user account which is heavily restricted on what they can do? As in, not even browse files. Preferrably only desktop access where they can launch the apps placed there. Which Linux would be the best for this while still being on the easier side to figure out? I do understand tech somewhat well and quite enjoy problem solving, so doesn’t need to be ELI5 territory.
Since I think the answer is pretty much complete I just want to link you a tutorial/article giving a short overview and introduction:
https://www.pluralsight.com/blog/it-ops/linux-file-permissions
One more thing, always remember that for Linux everything is a file (a path, a program and well a file like an image) therefore everything can be restricted with this.