Do you plan to do a clean install of macOS 27 when it is finally released to avoid any lingering issues from the betas?
Even with beta 6, I am still getting too much data being written to the SSD (by an App Store process).
Maybe this is caused by a data corruption issue so that's why I think a clean install might be necessary.
Are you encountering this problem with excessive writes to the SSD by an App Store process?