Sometimes this happens to me as well. Usually when a celebrity does something news worthy that is how I discover it. Or when sports things happen.

I will say though that, while you are probably right that only learning about news through memes is not a good way to be informed, the other extreme (obsessing over every headline) is probably bad too.

As unsolicited advice I’d recommend finding a few long form journalism sources and following them to get a better feel for the news. Doing the over time I have found that i am informed without the hysteria that often comes from 24 hour news cycles.