I realized that I never actually played the game to a serious degree past doing the "warm up" 50cc cups for golds when the base game and first DLC released, instead mostly watching my brother play online. So, no 200cc for me on my own save profile. I am spending the next few weeks clearing out the time trials for each cup then going for gold in 150cc. Although, really, I like the time trials considerably more than the races. The game feels more like solving a puzzle in this mode, working out the fastest paths and best use of mushrooms, which can sometimes be counter-intuitive (in a fun way). I know there are Mario Kart pros out there who cleared 3-star golds on 200cc within a day or two of the update, but I'm struggling to get just regular golds on even the earlier cups of 150. I just keep on getting fucked by items and there doesn't seem to be anything I can do to earn the desired outcome, even after getting the most efficient racing lines internalized via time trials.
As for the second DLC, I am also a bit underwhelmed by the new tracks. Nothing too egregious, but also no major standouts, though the tree and toy tracks are very visually engaging. I've played around a bit on 200cc with my bro's profile, and it's a good time. There are points where you get going so fast it causes a physical sensation of being out of control, not something I'm used to from this franchise and quite refreshing. Although some of the tracks might not seem like they were meant for 200cc, in general you've got to acclimate to braking on drifts, which is considerably more comfortable/natural if you switch to using Y to accelerate.
I really wish they'd update the time trials with a 200cc mode. Surely it can't be that much work to make a new set of staff ghosts.