Swift 6 and singletons / @Observable and data races

Using Swift
21

I would like to come back to that topic, as Swift 6 is now out and I would like to use it:

The code with the @globalActor works, but it brings another problem:

@globalActor
actor MyActor {
	static let shared = MyActor()
}

@MyActor
@Observable
class MyModel {
	static let shared = MyModel()
	var text = ""
}

struct ContentView: View {
		
    var body: some View {
        VStack {
			Text(MyModel.shared.text)
        }
        .padding()
    }
}

This will lead to the error: Global actor 'MyActor'-isolated property 'text' can not be referenced from the main actor.

And there is another problem with another example:

@globalActor
actor MyActor {
	static let shared = MyActor()
}

@MyActor
@Observable
class MyModel {
	static let shared = MyModel()
	var users = [User(name: "Steve", addressId: 0)]
	var addresses = [Address(id: 0, street: "Main Street")]
}

struct User {
	var name: String
	var addressId: Int
}
struct Address {
	var id: Int
	var street: String
}
extension User {
	var address: Address? {
		get async {
			await MyModel.shared.addresses.first(where: { $0.id == self.addressId })
		}
	}
}

struct ContentView: View {
		
    var body: some View {
        VStack {
			Text(MyModel.shared.users.first!.address!.street)
        }
        .padding()
    }
}

Despite the first called problem, I would need to access the address property with await, what doesn't work in the SwiftUI-view.

Any thoughts or ideas?