I think you hit the nail on the head - we don't need to know as much as we did. The internet had explosive growth and now with a phone in your hand, information overload is easier than ever before, because it used to just be the television while you were at home. Now you can be out with friends and glued to a device feeding you data every waking moment.
What I'm trying to do in the absence of those constant data streams is be more intentional with my time. Your serotonin doesn't need to come from hitting refresh on a post for upvotes/likes, though that is what modern social media conditioned us to do. Consume media that doesn't demand emotional labor. Create. Play. Read. Travel. The world outside has changed a little bit, everything is more expensive, but nature is still (mostly) free.
At the end of the day you aren't missing much, despite what your fomo is telling you. And your phone is still a p2p communicator. Hopefully when something consequential happens, a friend or loved one will relay the message. I hope this helps a little.