Most overrated film in history?

Rating: 4/10 (16 December 2019)

A 93/100 metacritic score? Why?
I saw this movie yesterday, thinking that it was going to be a masterpiece. After half an hour, I noticed that I didn't care for the characters. The story, if you can call it a story, just dragged on from there. It's not really a story; it's more 'look at the struggle these 2 people go through'. This movie has every sign of a vanity project. There is loads of talent, but very little to work with.
Why is it called art when a movie has no consistency?