notes can be real handy more so in zoom poker for obviously the number of players. I guess by now you know what sort of notes you need to. I would like to add just one more thing that might be worth noting. That is "Runs it twice" !!
Some players enable this option in the lobby and play accordingly in in cash tables. Here when two players who have both enabled this option then whenever they are all in the rest of the community cards run twice. This info can be useful sometimes knowing which players have this option enabled.
If you are running it twice and if you know if there are other players who have this option enabled then you can have a slight advantage by semi - bluffing
( or playing draws aggressively intended to make them fold) against such players.