I am surprised that devs are installing updates on day one. they should know better given apple's recent history..
Unfortunately this version fixes critical issues (and performance problems) that were introduced in other versions and is needed to build to the most recent release. It is funny because there is a major SPM fix that I need to release on Mac included in this GM... and apparently SPM is what is broken here? Thankfully I use dev site or I wouldn't of been a happy camper.
And just FYI: whether an Xcode version is jacked in some way or not, it is what we are stuck with. Apple stepping up to admit there's a problem and their public "we're aware and are fixing it" is literally exceptional and only because it is 100% broken... anything less and you're SOL regardless of downloading the day of or a week later.
Let it be a slow burn along the way rather than a sudden ststorm when you've put it off, I say.