There are 3 versions of the Fundamentals 1 & 2 courses.  You can use any one of them to get started learning guitar.  If you are already working through one of them & it was working for you, then stick with that one.  If you want to try something different, then try one of the others. 

Regarding differences, each version of the fundamentals courses teaches essentially the same material in roughly the same order, but featuring the distinct personality & approach of each instructor.

So in all of them you will get: an intro to the guitar, note names, simple melodies, then scales, simple chords, then open chords, then barre chords, all with chord progression examples & the appropriate focus on technique.  All of this is presented in gradually increasing levels of complexity with musical examples.

Anders's is the most current with the most up to date production values.  If you are just starting out, this is the one to use.

https://www.guitartricks.com/course/fundamentals1

Lisa's is the next oldest.  You can get to it by clicking on the old course with Lisa button on the GF1 landing page.  Or just use this link. 

https://www.guitartricks.com/course/fundamentals1_lisa

Mine is the oldest.  You can see the structure of it from my instructor page.

https://www.guitartricks.com/instructors/155014

Or you can start working through it by starting at this link that goes to the first lesson.  Then you can see the navigation links on the right side of the page under the content tab.

https://www.guitartricks.com/tutorial/1142/

All of them will help you learn to play guitar.  Hope that helps!