Something I found surprisingly infuriating lately is that on the YouTube app for iOS, you can be watching a video full-screen and, before the video is even finished, a thing slides up from the bottom about what it wants you to watch next. Fuck off! I'm still trying to watch the one video I elected to see and it's already trying to herd me down the attention deficit rathole.
I have no idea what you're talking about. My specific complaint aside, the dedicated app is far more responsive and reliable to use than the mobile site, as is often the case when there's a choice.