I saw John Wick Chapter 4. It was good, but I'd say its a little overrated right now. I don't think it was the best one in the series, for example. But its the highest rated one in the series on Internet movie database at this time (at IMDB rating 8.2!). While there are some good action scenes, they do way too many of them, and the movie is much too long, at almost three hours.
Most of that time is non-stop action scenes. Too much of a good thing, like eating too much candy, ain't so good. But that said, there is some good story stuff going on too, and one actor and his performance was really good in the movie, I thought. Even made me a bit emotional, to be honest. It's a character of a villain, but one who still has a conscience and a sense of honor. Shades of gray. I like that type of thing, and its in this movie, and very well done. (the character's name is Caine, he is the main competition to John Wick's character in terms of fighting skills in this storyline and movie)