Is Absurdism really part of Existentialism?

I feel that absurdism is not about finding meaning of existence and life, but rather abandoning this yearning and pursuit for meaning, flourishing in this state of purposelessness and enjoying and living to the fullest. Existentialism from what i understand is the philosophy of finding the true purpose for life, and if absurdism rejects this principle entirely then is this not paradoxical??

However it can also be argued that through this embracement of absurdism, by abandoning the reason we are here, you have already found a purpose to live ; For yourself. I'm not quite sure...what do you all think? I'm interesting in hearing a different point of view and interpretation!