[Understanding and Techniques Feedback]

'Keyboard' scope

I am low vision and cannot use a cell phone to support multi-step 
authentication/login.  I argue that if a website accessed using a 
desktop browser, not an app, requires inputs typically via cell phones 
(text or voice only) is not compliant with ""Ensure all website 
functions are accessible via keyboard"".

Alternatives like opt-out or one-time device recognition or an email 
verification code have been acceptable so far.

Thank you for your consideration and advise.