SwiftUI: Toolbar jitters when toggling sidebar (macOS)

When I toggle the sidebar in my macOS app from the toolbar, sometimes the share button on the upper right jitters (see video). This does not happen on every click, so it might take a few tries to reproduce with the example. The app I am working on has much more content, and there it happens more frequently.

I assume this has something to do with using two .toolbar modifiers: When I move the sidebar button to the content area and trigger from there, it seems like the jittering is gone.

Any idea how to fix this? I was not able to recreate this toolbar button layout without using two .toolbar modifiers. Code below video.

struct ContentView: View {
    var body: some View {
        NavigationView {
            Text("Sidebar")
                .frame(width: 300)
                .toolbar {
                    sidebarButton
                }
            Text("Content")
            .frame(minWidth: 500)
                .toolbar {
                    shareButton
                }
        }
        .frame(height: 500)
    }

    var sidebarButton: some View {
        Button {
            NSApp.keyWindow?.firstResponder?.tryToPerform(
                #selector(NSSplitViewController.toggleSidebar(_:)), with: nil
            )
        } label: {
            Image(systemName: "sidebar.left")
        }
    }

    var shareButton: some View {
        Button {
            print("Share")
        } label: {
            Image(systemName: "square.and.arrow.up")
        }
    }
}