I feel like the entire productivity thing is broscience. There's no study for it (the 'three items' idea), it just feels like the right thing to do.

Quite often the people making these tools are not particularly productive themselves. And nobody I know has ever stuck to one productivity system for very long outside of "todo list text file"

The idea is not about One Perfect/Right solution/tool. Explore them and modify them to how you react and which ones work for you. Use multiple tools (plain-text as default, another App with the team, Notebooks for yourself), etc. For someone struggling with too many options, perhaps a little nudge to some direction is what they needed. At the end of the day, It Depends. https://brajeshwar.com/2024/it-depends/