It's not just about watching content, but also about having it neatly organised with your watch history tracked in a easy to use interface. And on top of that, making it easily accessible to friends/family with minimum effort.
open source to me means open source, not open/paywall/ source.
It sure means that, but not quite sure why this is relevant. There is obviously a big overlap between self-hosters and foss enthusiast on lemmy, but for me they are unrelated.