I've seen Borderlands, Joker: Folie à Deux, Dear Santa, Unfrosted, Argylle and Atlas.
Borderlands was loud and obnoxious. Every character was annoying. Once the plot got going it was watchable, but yeah, not a good movie.
Joker was insufferable.
Dear Santa was not funny and a chore to get through. I think it sat in a weird area where it was a movie that was meant for kids, but then a few times seemed like the jokes weren't age appropriate. Maybe I'm misremembering, which is good.
Unfrosted was painfully not funny. Easily the worst of the bunch.
Argylle and Atlas were both at least watchable. Seems odd that they are being singled out as especially bad. I wouldn't recommend them, but they are just kind of standard forgettable action movies.