Most of the critic (and user) reviews are what I think of as "easy mode" ones. They don't really teach you anything about the film, just say whether they liked it or not, using the most colorful language they can possibly muster. The FF quote seems like a typical example.
Alternatively there are some that really dig deep into the meaning and execution of the film and analyze it in ways I would never think of, not having a PhD in literature or having been to film school or anything. An example I like a bit is Film Crit Hulk[1], which range from simply explaining why the film's execution didn't match its themes (Jurassic World) to borderline philosophical treatises on the meaning of film (Birdman). (Imo, obviously.)
For getting a quick rating to see what soared/bombed, stuff like RT and IMDB serves its purpose, but I wish published reviews would do more of the deep dives into film analysis, rather than just letting some random journalist vent their opinion for pageviews.