- I can have multiple inboxes displayed in Gmail at the same time, such as is:unread or is:starred
- I can compose an email while reading another in the same window/tab
That being said, there are a lot of things I like about Fastmail over Gmail, notably that its way faster. As an admin (our business uses both Fastmail and Gsuite), I also like how much simpler and more standards compliant Fastmail is as well.
The mobile client, I really like the gmail iOS client. I think fastmail was better than the native iOS mail client, but I just really like the gmail one.
Google docs, photos and drive are nice additions, but it’s mainly the first two.
The mobile client: I don't know the iOS client but urgh. The Android FM client is pretty lame :D Luckily, I rarely use it.
I use next cloud for all docs, images, etc. and neither has an integration so that's a toss-up for me ;)
Now I prefer the mix, I can certainly understand people who prefer the separation.
The false-positives are usually so absurd, that I have to assume they have no boundaries for their ML-whatever. If it says spam because it has decided that contact books are only worth 90% positive signal, then into spam it goes. ML > any hard-coded rational decisions.
I mark and report them spam, and yet gmail won't even pick up on them if the same mail comes through again later from the same sender.