FYI, even if the game displays the autosave icon in the corner, it shouldn’t actually save until they leave or you end the session properly. My boyfriend came to my town to wish on shooting stars last week and we spent almost an hour wishing, and then I wasn’t paying attention and let my switch screen go dark, which automatically ended the session and sent him home. Not a single moment of his visit was saved despite the many autosaves during that time.