French company Fortiche Production does the cinematics for arcane and did a couple of League cinematics before arcane as well. Riot actually now has a non controlling share in the studio.
Most people find the story interesting (in fact, it won multiple awards for it), but it's totally OK if you personally don't find it interesting. I would personally not watch/comment to a reaction of a show I didn't like, but you must have found a reason to ...