Personally: I'm skeptical the status quo changes much. The "pre-AI" world was not exactly filled to the brim with shining truth. Propaganda, dishonest arguing, and just plain ignorance have existed for a long time. True, generative AI appears to be great at fabricating stuff, so verifying sources is arguably more important than ever.
Thinking about it, I guess deepfakes are more concerning to me than the textual stuff. I don't follow the state of the art there, but what few I do run across (e.g. fake phone calls "from" famous people) does seem... concerning. It's not quite good enough to be convincing yet, but if it were a perfect replication, recordings would be suspect. (On the other hand, audio recordings haven't existed for all of recorded history, so maybe it's not quite the end of the world, I dunno.)
Anyway, anyone want to take bets on how poorly this comment ages? 😛