Yeah, I'll download an app for Uber or Southwest airlines or Airbnb because their two-way information requirements work better as apps. But I won't clutter up my phone with things that work just fine in a browser, which is most of what I need. I don't play games, so maybe I'm not most people.
Here it's true if you talk about official app, which you seem to be doing, but there's a couple of other options - apps made by community, which can be way better than official anything. I guess that Reddit doesn't want to fall behind and that's it.
That's the window for apps to compete. If "just fine" works for you, cool, but it's possible for apps to make the experience better in meaningful ways. A web page can't notify of you a new message, but an app can, for example. Look at all the Twitter apps that came up, and they've had to start to systematically kill over time because the experiences are _so much_ better than Twitter in the app. "Just fine" doesn't push us forward.
Now if we could just get app designers to realize that!
IME, apps are usually just poor front-ends for the website, where companies think it's OK to shove stupid things like unblockable ads, notifications, data-harvesting, etc.
Oh, reddit on mobile without an app is a displeasing experience. The official app though, isn't much better.
I do have apps for all the shoppibg platforms I use, even though the performance isn't substantially better