RSS is not gone, quite the opposite. Most people, however, don’t use RSS subscriptions like they did in the old Google Reader days, but RSS is running underneath a whole lot of stuff that we all use every day.
But, I also want to point out that there are a TON of good reasons to use an RSS reader now. Maybe more than there were when Google still had one. As it is, we’ve sort of grown into this habit of letting social media inform us. If there’s some topic we want to know about, we’ll follow some accounts and let the algorithm decide for us what we need to see.
Look how well that’s working out.