Icons displayed on poster works great in grid view.
In list view you get icons on the poster and icons for watchlist and watched to the right.
I suggest in list view that all available icons be made available and actionable in line with watchlist and watched, to the right of the poster on the bottom — a row of those icons would be much easier to view and they could be actionable, just tap collection icon to add, etc. (Yes we can long press, it’s more for viewing quickly if I have watched, collected, etc… Poster icons are sometimes hard to decipher, and there’s all that empty space)