I feel your pain, slightly, but isn't the majority of this list caused by the fact that Apple's software stinks? There's no way for apps on iOS to share the account details. You don't need to do any of that junk on Android. And you wouldn't have to do any of it on a Chromebook, either.
You don't have to do it on ios either (assuming your using the built-in mail/calendar/contacts). Ignoring that that OP was setting up multiple unique gmail logins (personal and work), the scenario he outlines requires entering exactly 1 app specific password per gmail account in the "mail, calendar and contacts". I have no idea why he's talking about using them in the browser, normal 2FA works fine there.
