At one point I was following a few local news accounts on instagram because I'd scroll past some content while I was already looking through the feed. It wasn't my only way of getting news, but just another form of it.

Facebook dropping news probably won't affect me much, but I can see Google being more impactful. I know some people use the news feed as their primary way of finding news, and I also click on news articles when they come up on the search. Depending on the extent of the removal, it might replace a lot of reputable news with content that isn't "news" but still fills that niche.