Why there is no OOP (object oriented programming) in Julia?

[CameronBieganek]

Overloading is definitely similar to multiple dispatch, but they’re not quite the same. See this long discussion:

Claim (false): Julia isn't multiple dispatch but overloading

I heard a rumour that Julia’s multiple dispatch is “fake news”, in reality it’s overloading because you compile the function before it is run and all you are doing in Julia is just a series of compile and run actions. Is this true? Thanks in advance.