Anyway, I found the most useful productivity method to be just plain to do lists and some kind of canvas (I mostly just use pen and paper now), so I decided to apply: Notion logic + simple to do lists + canvas.
You can try it out here: https://kanvas-app-zeta.vercel.app/
(Everything is stored locally in your browser, no servers)
How it works:
1 - you can create cards (draw or space or cmd+n)
2 - inside the cards you can put text and to dos (cmd+shift+k)
3 - you can create groups of cards
There are also tons of shortcuts, planning to add more.
Feedback always appreciated!