Not all emails are equal, where there are some that you’ll probably want to reply to ASAP, and others that you can probably take your time with (although you should still reply somewhat promptly). The good news is that Google has announced that they have updated its iOS app with smarter notifications.
What this means is that users can now choose to only allow notifications from emails that are deemed to be high priority. According to Google, “These notifications leverage Gmail’s machine learning and artificial intelligence capabilities to identify messages you may want to read first. To enable the feature, select ‘High priority only’ from the Notifications drop-down in the settings menu of your Gmail iOS app.”
Exactly how Google will determine this is unclear, but as Google states this will rely on machine learning and AI where presumably it will be based on emails that you reply more frequently, or those in which you might have initiated first. This would be much better than receiving notifications even from emails you would delete right away, such as promos.