Using view-model first navigation, pop the current view from the stack and then call an initialization function on the next view model that's about to be shown.

NavigationService.cs

public async Task PopAsync<T>(Action<T> reInitialize = null) where T : BaseViewModel
{
	await PopAsync();

	var topPage = FormsNavigation.NavigationStack.Last() as IViewFor<T>;

	if (topPage != null)
		reInitialize?.Invoke(topPage.ViewModel);
}