Just made an account to help anyone that was trying to figure out this issue as well. I got a new phone recently and for some reason my chase account shows my old phone numbers I don't have access too anymore even though I have update phone numbers on the system. In order to avoid a lengthy phone call talking to CS to remove that just so I can get a 2 step code to setup the app. I was searching a while and found the reddit post that helped me get the email code that allowed me to login on my new phone. The information Translogic posted above is correct but doesn't show exactly how to turn on that extra step at the bottom. That step is what helps bring email verification back.

Stumbled on this thread after going crazy looking for this setting. In case it helps anyone, I found the setting by clicking "Security & privacy" on the sidebar (click the three horizontal lines at the top left of the screen) and scrolling to the bottom of the screen under the "Resources" heading--you should see "Add extra security when you sign in using a browser" there " . From reddit post credit to monskluppers