I know y'all have been waiting for the HeartfulKitty hot takes for the last over a thousand posts, so here's some scatterbrained thoughts.
Deo-S and Roaring Moon currently seem like the most problematic elements to me. Deo-S is both the best lead and an incredible offensive threat, giving it a lot of versatility in roles that it overperforms in, while Roaring Moon is doing the same things it did in DLC1. I don't believe either currently warrant a quickban, but suspects seem appropriate, pending meta developments over the next couple weeks.
Darkrai is very good but not broken. Scarf is for sure the best set, while specs and utility sets both put in decent work. NP + 3 attacks could eventually be broken if the meta slows way down, but it sure as shit ain't right now. I'd go so far as to say that it's the least reliable non-meme set. (Sorry whoever hyped it up, hypnosis is a meme that only works if the funny gods allow it.)
Raging Bolt, Gouging Fire, and Archaludon are all appropriately hyped and good in this meta. Use defensive Gouging Fire, it's not as fun as just pressing buttons on sun but burning bulwark + morning sun is solid. Stamina + body press Archaludon is very funny into whoever's running Maushold (so like 5 people), and stealth rocks is neat role compression. Iron Boulder is overhyped but still rock (hah) solid in my opinion, it doesn't ever do quite as much damage as I want it to but it's still fast as shit and very strong with a good rock move. Iron Crown mid but can do funny stored power shenanigans, and I'm sure someone will make a non stored power set that's fine enough. Hydrapple is something I haven't played with or played against enough to have a strong opinion on, but it seems like it'll be the first of the new mons sent to UU along with Iron Crown.
Hazards are still annoying as fuck, especially with Deo-S/Skarmory/Gliscor in the tier, but temper flame is actually a nice little boost to Great Tusk's toolkit. Helps a lot with spinning against Gholdengo at least. I don't think Gholdengo is currently broken or even overly centralizing at the moment, as the current problem is sheer lack of options over many things being shut down in battle, but the hazard situation will eventually need to be dealt with somehow. Might just be that banning Deo-S and Gliscor again is the best way forward, maybe banning Gholdengo is the only way to fix it. Who knows.
Serpeior and Kyurem are potential problems but not currently broken, just really annoying. Volcarona and Enamorus are great but currently fine. Kingambit is still Kingambit and thus still sucks to face, even if it isn't broken. I hope somebody's able to make a sand team that doesn't suck because Excadrill is fun. Stellar Tera is better than people think but still only useful on like 5 mons max.
Skarmory being back and top tier means there's an excuse to use Magnezone again, as it rarely wants to tera out of its base typing. Although I actually feel like analytic is better with tera making trapping steels not nearly as useful which isn't a meme and can put in actual work I promise. No I don't have any proof of that, why do you ask?
Meta is, as everyone else is saying, surprisingly balanced at the present moment. I'm 99% sure there's gonna be some development soon that throws everything out of whack, but I'm enjoying it for now.
This concludes this edition of HeartfulKitty Says Things About Pokemon Online™️©️