Niall Cunningham

I find that Xamarin does not Scroll to elements outside of the display window. Whereas Voice Over will continue moving through the elements which exist outside of the viewable area

https://www.bbc.co.uk/accessibility/forproducts/guides/mobile/indicating-language/

Feature of Talk Back: Links across the application that are marked as external links do not appear to be accessible using the “Navigate by links” feature in TalkBack.

https://developer.apple.com/documentation/objectivec/nsobject/uiaccessibility/accessibility_traits

WCAG description: | All functionality of the content is operable through a keyboard interface without requiring specific timings for individual keystrokes, except where the underlying function requires input that depends...