See, you educated yourself! I only wanted to point you to official documentation with the hope you get in the habit of starting there (with any tech). Ask a hundred people and probably get a hundred differing answers. Look at Stack Overflow and sites like that where there’s always multiple answers. Thankfully there’s usually one with a green tick that is likely the best answer. Anyway, you now have it in a nutshell - No data to recover = The point of using Tails (without persistence). There’s no such thing as permanent total online anonymity.