What to even expect at this point.. At this point, many of us walk in to a Fast & Furious movie with very low expectations anyway. It's the kind of movie you watch to just ease off. Nice cars, fast paced, action packed, stunt heavy and the classic dumbed down hero/villain story. This has been the Fast and Furious formula for over a decade now. While it definitely seems to be getting old, it still works (kind of) and hey, it's not a bad thing to still have movies like this around. Especially in this day and age where pretty much everything on screen is pushing some form of a political agenda. So, if you're that OG fan who still walks in to a Fast & Furious movie expecting an actual plot with a decent story like in some of the early movies, well good for you. But you're definitely not going to find that here. Even the movie itself acknowledges this fact. So at least it's not the kind of film that try hard to be something that it's not. It just accepts what it is and delivers what the audience expects (At least most of us). Nothing more, nothing less.
If you really want to know, the story, to simply put, is very bland. There's no originality, no interesting arcs, hilariously bad dialogue, numerous plot holes which even a 6-year-old can spot and it simply exists to supplement the action sequences. Not the other way around. Also be warned that if you're a fan of the Tokyo Drift story, this movie might potentially ruin that for you.
It kind of shows that the cast is also getting a bit tired of the repetitiveness and the milking of these stories and I too believe that it's about time they wrap this up after the 10th installment. Yes, there will be a 10th and it's not like I spoiled it anyway because everyone knew that before this movie was even announced.
TLDR: It's just a very dumb movie with lazy writing and lot of CGI/stunt shots. But that's the exact point of it and if you still expect more of this franchise after all these years you're something else. At best, watch it drunk with some friends..