What's the difference between If not (variable) and if (variable) == false?

I'm learning Python and I just started learning conditionals with booleans

I am very confused though as to the specific topic of "If Not". Could someone please explain to me the difference between :

x = False

if not x:
   print("hello")

if x == False:
   print("hello")

When testing this code on a Python compiler, I receive "hello" twice. I can assume this means that they both mean the same thing to the computer.

Could someone please explain to me why one would use one method over the other method?