FYI, (public) beta means ready for final general public testing, after it’s been well tested by QA and likely to have no bugs or not many bugs. If I found it after 15 minutes of use it haven’t been well tested or tested at all. If this slipped their QA they better higher another QA team.
Beta is just a flag on their servers, tomorrow they will set it to false and the beta will be gone from the title.