BUG that has been around since 2015 and no fix! URGENT!

here is The bug that has been around for ages and hasnt been fixed, unless someone knows of a fix. to get it working you can set <xaml:NavigationPage Title="About"> to <xaml:TabbedPage Title="About"> this cause the app to crash but gives back the wrong page type. is there a different type i should be using?

i have also looked into creating a custom more controller for ios, however the user can set the tabs to be shown or not.

<xaml:NavigationPage Title="About"> 
            <NavigationPage.Icon>
                <xaml:OnPlatform x:TypeArguments="xaml:FileImageSource">
                    <xaml:On Platform="iOS" Value="tab_about.png"/>
                </xaml:OnPlatform>
            </NavigationPage.Icon>
        </xaml:NavigationPage>