SubscriberView.swift

import Combine
import SwiftUI

struct SubscriberView<Publisher: Combine.Publisher>: View where Publisher.Output: View, Publisher.Failure == Never {
    @State var view: Publisher.Output
    let publisher: Publisher
    
    var body: some View {
        view.onReceive(publisher) { newView in
            self.view = newView
        }
    }
}

extension Publisher where Output: View, Failure == Never {
    func view(initialView: Output) -> SubscriberView<Self> {
        .init(view: initialView, publisher: self)
    }
}

I found a Swift package that seems decent: https://github.com/denizcoskun/SubscriberView/blob/master/Sources/SubscriberView/SubscriberView.swift