There are three steps to this process as I see it.
Second: make sure you thoroughly learn the chromatic scale (Lesson 8.2 in Intermediate section)
Third: Learn the CAGED system (Lesson 9.1 in the Advanced section).
The fact that these lessons span all three levels reflects the normal tendency for guitar students to acquire this knowledge on a fairly gradual basis as they discover they need it to progress further at each stage of learning tio play guitar.
But don’t be put off if you are still a relative beginner – I don’t believe it is ever too early to learn your notes – it makes everything else easier to learn! The three lessons mentioned above are all reasonably easy to follow for guitar students at any level.