Sorry I skipped it.
The Library (things you own a digital or physical version of) will be available soon. We are currently working on it.
We are looking at ways to improve the mark as collected. We want to make sure users mark real collected items and not use the Library as another list.
You have “Continue Watching” (what you started watching and can continue watching) and “Start Watching” (what you added in your Watchlist) in the Home tab.
You have access to your Watchlist in the Lists tab.
You can see what you watched under your Profile “Recently Watched” or at the bottom of the Home tab under “Recently Watched” (this changed recently based on feedback we received these last days).