Is it the case that the tension that we experience today is between modernism and postmodernism? 

It seems to be the case to me, but I'm not even sure how to verify this without doing a LOT more work to increase my breadth of philosophy.

I think it's a return to romanticism that is next -- departure from the ennui that being post-postmodernist creates. We have no choice but to return to yearning when the object that which we build our meaning on no longer offers substance. Modernism was a destruction of ornamentation of thought and design, and post-modernism was a rejection of minimalist as an idea because well who cares how we put it together man

creating and destroying; flying cars, roc.camera, july.rocks

I think of romanticism as the same as modernism because it was the rejection of rationalism and leaned into irrationalism. 

I think the nihilism you mentioned is the outcome of the postmodernism’s critique of the modernism’s search for ground truth. 

Is it correct to say that tension I mentioned is because we are caught in between the search for meaning and the denial of its existence.