I don't hate it but it has done a large degree of damage to availability of information and what's true or false. This can be observed in the typical news cycle which aims to obscure details and facts in an effort to a. promote a specific agenda and b. dupe viewers into believing they're informed by a single perspective. It's obscurantism on steroids at this point and paraphrasing Daniel Dennett, it has led to an era (hopefully brief) where it's respectable to be cynical towards truth or facts. I.e. flat-earthers, anti-vaxx, climate change, etc.
This might not be entirely the fault of post-modernism, and perhaps it's simply a result of being able to peel back the onion on Google until you find an obscure article that "sort of" confirms what you already believed. Combining that with the ability to easily mobilize and engage with other people on the Internet who share your beliefs, well, the rest is history.