Answer : Disable bitcode. From Xcode 14 release notes: the App Store no longer accepts [Shipping] bitcode submissions from Xcode 14. [for Shipping builds, it seems]```
However, you can still have an issue if you are using plugins that have a pre-compiled component or framework in them. That pre-compiled piece may have bitcode in it. This is what happened to me and it was a pain to deal with.
Look in each of your plugins and if there is a .zip somewhere in the source folder then that might be your culprit.