The end of an era! Goodbye xcworkspace. For most of my use cases SPM is now much easier to use and causes less issues but a great effort from all the Cocoapods maintainers over the years.
I wonder how interoperable SPM is though with non-Xcode build pipelines (e.g. Unity projects, ReactNative, Flutter, etc)?
React native support for SPM is non-existent for the most part. There's some work on porting to SPM but it's gonna be a while before anything becomes stable. It's going to break a huge amount of 3rd party packages. A bit of shame this wasn't done earlier as the RN ecosystem just went (or, is still going) through a migration to the "new architecture" that required most 3rd party packages that use native code to be "ported" over. Could have been a two-for-one kinda thing!