Not to be funny, but I had almost 500 subscriptions to youtube channels. On desktop, Youtube made it deliberately hard to unsubscribe (it used to be easier), on ipad, the experience is much better. I also find netflix ux less crappy on ipad than on desktop.
The aspect ratio of the iPad is not great for video which is mostly a widescreen format. I really don’t like losing so much screen real estate. Sometimes I prefer my iPhone XS Max to watch a video on than my iPad Air.
I specifically bought a kindle Fire 10” tablet to watch videos. Everything else on the iPad is superior to the kindle