There's some ridiculously obvious AI rubberbanding going on which sucks. Why must this still be a thing when it's a thing that's complained about in virtually every game it was implemented in?
The theme of the game is also kinda meh, the whole followers and public stream live craze and stuff that basically is a copy of Forza Horizon 3; Cars are still the forte, and flying and boats events feel kinda shabby. Why even allow you to tilt the boat back to get more speed. There seems to be physically no reason to tilt the boat forward to go slower, and overall this just seems like poor design.
Other than that, I also don't like how heavy the handling / vehicles feel. It feels like every racing games released lately have this thing going on while it supposedly makes them feel more realistic. I hated this in Forza Horizon 3, I hate it here. I don't have a racing wheel, I have a Xbox controller, and it feels mildly awful... but I did get used to it about 2 hours in.
Everything else however has been improved as far as I am aware.