Mash that unsubscribe button my dude.
My work sends me several shipping notifications a day, but they are not priorities. They are emails to be reviewed later in the day. I don't want push notifications for them. I don't want them in my primary inbox. Gmail (without me telling it to) puts them in the "updates" tab.
Same for the promotional emails that come in. They go in "promotions".
If I get a 2FA email or an update on a social website they are sorted in the "social" tab without my having to set anything up.
This is extraordinarily helpful for managing my email, and it is absent in every client I have tried.
It's a pretty elegant design, which is why I'm so frustrated that Gmail has been the only service where I have found comparable functionality. I'd like to move away from reliance on Google.