4 stars is a very generous rating from me, I only give such a high rating to such a boring film because the story even tries to discuss some interesting themes, albeit very prosaically.
I also like the cinematography and some of the locations a little, but that's it, the film is tremendously boring and has serious pacing problems, it's over three hours long and could very simply be shortened to around 90 minutes without losing much of the substance. Narrative that isn't much.
In this way, this review acts as a bit of a warning so that you don't waste too much time of your life watching such an insipid narrative. I don't want to use the word pretentious, but I think it's useful here.
The film simply does not respect the viewer's time, it has a very basic and rudimentary script, disguised in such a way as to make the inattentive viewer think they are watching something of substance.
Come to think of it, considering the total lack of respect in taking so much time without having much to say, 4 stars is perhaps too condescending a rating.
In short, the film is tremendously boring because it is unnecessarily long, perhaps if it weren't so long it would expose what is truly true, a film of little substance.