The entry platforms: [.iOS(.v16),] says to you have a restriction for iOS, but there is no restriction for any other platform. So I would think that platforms: [.iOS(.v16), macOS(.v10_15),] would save you.
The entry platforms: [.iOS(.v16),] says to you have a restriction for iOS, but there is no restriction for any other platform. So I would think that platforms: [.iOS(.v16), macOS(.v10_15),] would save you.