These guides are more in depth than the mini-guides. They should give you the basics of gameplay, but also give tips on how to extend your games, get to wizard modes, and go for GCs. They are definitely not geared to tournament play.
These guides are not meant to be definitive guides on how to play a game. They do not have detailed rules knowledge like full rule sheets. You won’t find out the value of every shot or jackpot.
Also be aware that they are written by individuals and will be that person’s take on the game. As time goes on, games might have multiple guides written by different people to allow for different styles of play.