I think this may have been reported before but perhaps not articulated specifically enough.

 

On the login page, when clicking into the Email box, Google Chrome does not auto-suggest anything so the user has to fully re-enter their email address every time.  In Edge, Firefox, and IE the auto-suggest works per the screenshots below.

 

Google Chrome

 

 

Microsoft Edge

 

Firefox

 

 

And Old Faithful

 

 

As a side-note, in Chrome when clicking into the Password box it does auto-suggest recently used passwords.  But our users who have multiple email addresses (myself being one of them) report this as a pain.