The big difference between AutoCAD and Fusion 360 is that F360 is parametric. This takes some getting used to but once you are there it feels very odd and restrictive going back to ACAD.

Parametric means you can loosely draw something and add dimensions to it. You can then edit the dimensions and the drawing will refresh automatically. You can also add various constraints to do the same thing.

In AutoCAD you have to edit the lines themselves and move / edit the points around. Instead of that once you get used to thinking of the lines as a framework which contains rules to define the drawing it makes CAD much quicker and very powerful.