Well look at the post for example. The author is explaining their system of the specific apps and flows they use. Are they the right apps or flows? That’s up to you.
Personally I don’t think of Tiago Forte as a productivity expert. He just happens to be a social media personality that does productivity stuff. Like other “productivity gurus” on social media, if you pay close enough attention they switch their systems regularly. Maybe it’s to have fresh content, who knows. I think it is because they fell in the trap.
It’s all FOMO at a certain point. Like the pioneers I mentioned earlier, their advice is to not be afraid to do your own thing even if the masses are going in the other direction.