A tabbed page could be defined like this in Xamarin Forms and behave as follows
And in presentation it would look like
Navigating to a next page on this home page by clicking on for instance 'Start your hearing assessment' would show:
Of course you can click on another tab icon in the tabbed page, for instance Settings:
But when you navigate back to the Home page you still see the Hearing test page:
What if you want to see the Home page instead? Override the OnCurrentPageChanged event of the TabbedPage as follows:
When you click on whatever icon in the tabbed page, it will always navigate back to the root navigation page.