[setopt]

> Notion is some kind of Kanban board, isn't it?

No, it’s not. But I wouldn’t be surprised if it has a Kanban board.

It’s a proprietary cloud-based wiki with support for every more or less mainstream feature (multimedia, databases, AI integration, collaboration, etc.). It’s a bit sluggish and doesn’t have a good mobile story, but if you don’t mind the proprietary aspect, it’s otherwise a polished product.