From what I have heard in the past from casual edible users (i.e. once a week) this checks out. 2.5mg is good for a low-key night, 10+ is when they start to get into “get stupid” territory, and 5mg is “just right”.
There’s so much that goes in to it. 10mg indica and I’m trying to go to sleep. 10mg of Sativa and plowing phone games for the next 5 hours.