CustomTabsActivityManager doesn't work with multiple activities. (Xamarin.Android.Native)

[Deniel]

    public static CustomTabsActivityManager From (Activity parentActivity, string servicePackageName = null)
    {
        if (instance == null) {
            instance = new CustomTabsActivityManager (parentActivity);
        }

        return instance;
    }

This method works for a single activity only.
When using multiple activities, the logic for Xamarin.Essentials.Webauthenticator doesn't work as intended.