I am not quite sure how Apple is numbering their Big Sur Beta releases, but I did just install the latest release titled 11.0.1 Beta. The installation went fine. Most of my installed Apps work great with one exception, the Safari web browser. When I launch Safari it opens momentarily and then crashes. This is why you install a beta release on a separate drive from your mission critical Mac. I did a Restart, but the issue remains. I am sure Apple will fix this post-haste. Safari is such an integral part of the macOS.