Same issue with a clean install of RN 0.70.3
I had to disable Flipper in the Podfile to remove a lot of private API calls
Then still one private API call left:
The app references non-public selectors in Payload/AppName: onSuccess:
NB the suggested workaround from the Github thread mentioned above is just an Xcode downgrade, not very attractive as Apple will soon require to use 15 anyway.
If this is an issue at Apple's side I hope it will be soon resolved (an official answer would be appreciated)