(1) Design systems and components. We'd rather use the same thing everywhere, if possible. (Unless of course, it disrupts user login and end-user experience... which is why we'll look into making it better!)

(2) I actually think this can be fixed with a few HTML attribute changes but I won't know for sure until I dig in. If you can imagine, we have a laundry list of items piling up to take care of :)

For (2), you may find the section 'Other useful autocomplete values' from this article helpful:

https://www.twilio.com/blog/html-attributes-two-factor-authe...

Discussed on HN: https://news.ycombinator.com/item?id=22022106