I could find a way to suppress the warning by adding LSMinimumSystemVersion : 12.3 in Info.plist. It seems that the one specified in xCode in info tab is not used. For information, it is a SwiftUI app with MacCatalyst activated (optimised for Mac) with minimum 12.3 in info tab.

when On App Store Connect , do you see the build in TestFlight ? If yes, did you set the cryptography requirements ? If yes did you send invitation to email user ?

Did you explain this to apple review team ?. Have exact different icons, names , descriptions ?

Currently (2022-05-12 17:01 gmt+2) I can access App Store Connect . Possibly same problem as this post

begite submitting app for review you can choose between 3 options : publish manually publish automatically when validated publish after delay this is at the bottom of page where you enter app information

Did they check that there device version is compatible ?

Seems you are using some deprecated functions from coreAudio . This may be related : do you have any warning during compilation ?

Not sure you do it right : you try to use navigation title for each tab. The logic off this is not clear : you should use a Text at the top of the view. As your tab view is inside a view inside a navigation stack the navigation title should be on the tab view.

@MobileTen : The problem is that Apple can refuse an app for this problem which not under developer responsibility.