Most distros have a live mode for the purpose of setting up the OS and to try the OS before using it. I personally like TailsOS which is geared towards anonymou

Most distros have a live mode for the purpose of setting up the OS and to try the OS before using it. I personally like TailsOS which is geared towards anonymous browsing, but you can use it without even using Tor. You can do all the things you expect from any OS. File handling, viewing of media, etc