Dave Nania, on shirtpocket.com:
In the meantime, my advice for macOS Betas remains as valid as ever: do not install a macOS Beta unless you have a critical business need to do so. These Betas, even when public, are not for general use, and certainly not for anyone who wants a reliable system for day-to-day work.
They don’t even have an alpha yet. I’m excitedly waiting by the fence on macOS 11.0 while things settle down. Catalina has enough personality kinks as it is.