PH #00 or JCIS #00 Scews

To begin this is mainly about the screws that need to removed in order to change out the camera but it does apply across the board.

In iFixIt guides they call for the 00 Philips screw driver but in Apple's own self service guides and tool purchases/rentals it says JCIS bit. I know the differences between PH and JCIS is very minimal but it still seems somewhat important to know the difference.

So basically, regardless of how much it may or may not matter, which is the actual 100% correct tool? Does apple use JCIS screws instead of Philips or???

Thank you.