The test version and the live version have different database. So testing with the users on the test database means you are testing with test users and testing with users on the live database mean you are testing with live users.
Also to push changes live, click on “main” in the top right corner of your editor, you will then see a “deploy to live” button, click on this button to push your changes live.
Also try to search for bubble videos on versioning if you need to create multiple branches on version test for different testing purposes.