I've actually been part of public betas for many years, and this is the only one where I've felt launch day approach with growing concern, as it was clear nothing was remotely close to shippable.
There wasn't even a clear direction, as most of the fixes have just been reducing glass around the UI, and it's very telling that the only way they've found so far to make the new design language work is to roll it back as much as they can without losing face.
When friends ask in person I can just pull the phone and find bugs. Not ones that I previously know, new ones each time just by paying a bit of attention.