Show overflow menu (more menu) as disabled in iOS 16+

Hi! I'm moving my UINavigationBar and UINavigationItem to the iOS 16 style and having trouble with disabling buttons.

Before:

I'm defining rightBarButtonItems with a few barButtonItems plus a (custom) menuButtonItem (which has a menu with some more actions).

After:

I'm defining trailingItemGroups and let the system create an overflow menu dynamically, depending on space. I'm also defining some additionalOverflowItems.

Here's the problem:

How can I access the button/barButtonItem that is showing the overflow menu and call isEnabled = false? My UI, so far, has disabled all buttons during edit mode. I don't want to hide them, but have them grayed out, including the overflow menu button.

class MyVC : UIViewController {
    // ...
    override func setEditing(_ editing: Bool, animated: Bool) {
        super.setEditing(editing, animated: animated)

        // ...

        // This doesn't disable the overflow menu button
        navigationItem
            .trailingItemGroups
            .forEach {
                $0.barButtonItems
                    .forEach {
                        $0.isEnabled = !isEditing
                    }
            }
    }
}