Earlier quoted context omitted.
This is also why Google sucks at so many things, despite having the best offering on paper. GCP is honestly great, but a terrible product. Stadia? Zillion chat apps? Google Inbox by Gmail by Google? Google wallet pay Android pay wallet? They all work great and would be best in class if they were decent products and you could figure out how to get them to work at all.
It feels like someone with great ideas started working on Gmail and quit before it was finished. Whatever they are doing to organize emails in a "smart" way is super confusing. I kind of get it but it just doesn't work. They should either finish it or just revert back to organizing emails by date of arrival.
Smart but not obvious.