Gotta say that right now prankster destiny bond teams feel pretty obnoxious to me. They have an overwhelmingly positive matchup against basically every form of offense (except for Triage spam I guess). Although offenses highly built around priority can supersede the prankster, this all falls flat once the d-bond team starts running its own tsareena. Similarly keeping hazards can help prevent the prankster team from doing much more than going one-for-one on everything, but that is easier said than done when a prankster defog can lurk around every corner. It basically turns into a crapshoot where the only hope of the ofeense player winning is to predict perfectly every turn or run lots of weird techs. The team posted by Skankovich on the last page has been relatively common and very effective at curtailing offense, and it isn't even that much of an anti-offensive team, with basically everything on it besides the prankster Destiny Bond reinforcing its matchup against fat teams, so further refinements can be made to it to crush offense even more. In my personal opinion its very unfun to play against when the counterplay to it is "just don't run offense bro. also you need to predict the destiny bond every time".
Also I totally understand arguments for snowballing abilities and Magearna being broken but I feel like the fact that they need to get kills initially to start snowballing makes them in some ways, less consistent than a straight up damage booster like adaptability, hustle, or sheer force. Getting that initial kill can be fairly tough against fat teams with Frosmoth and such. Against offense being able to get Speed Beast Boosts makes revenge killing outside of priority fairly tough, but thankfully, priority is very viable and in no short supply. Of course, priority can be countered with Queenly Majesty, which brings me to my point that Tsareena, and to a lesser extent Tapu Lele, are extremely overcentralizing and are the common denominator for enabling some arguably broken strategies, like speed-boosting snowballers, Sturdy + Shell Smash offenses, and other stuff like that. Tsareena feels necessary on every offense team to not lose to every other offense team, with Queenly Majesty protecting from standard priority spammers like Crawdaunt, Grassy Glide spam, Triage teams, random Prankster + status users, etc. It's all just a very precarious balance, with anti-priority keeping so much in check right now, and the result being overcentralization.
So basically my point is that this meta feels like (and always has tbh) a sort of "broken checking broken" balance, with Tsareena being necessary on every team to check offenses, prankster Destiny Bond being very devastating against offense, but without these factors the metagame would spiral out of control with more and more insane offenses. Gotta say though that fat stall teams actually feel pretty fair right now though, regen + Multiscale is a bitch but with enough power boosting abilities and hazard pressure + knock off (unless they have sticky hold) that you can slot on offenses without stretching too much it feels manageable. Fur Coat's ban makes it a lot more fair too cause Fluffy has a lot of shortcomings, like stacking on a fire weakness unless you run Heatran, only working on contact moves, and being easily nullified by Decidueye which I've seen more and more of. There's my 2 cents
EDIT: To add to Pigeons' post below I agree that Regenerator is uncompetitive in this metagame since two Regen teams will be forced into an endless pivoting stalemate with zero progress extremely easily (To be fair this can happen in standard play as well quite easily with 2-3 mon Regen cores. Regenerator was honestly a mistake). At the same time, outside of that, stall teams don't feel super unfair, but I agree that they are matchup-based. Personally I do not believe Regenerator is the biggest culprit in the current meta but if we decide that all fat v. fat matchups ending with /offerdraw at turn 100 is something we don't want then ban it for sure