I agree. I started out thinking this would be a great season but so much has faded over time. Maou sama is boring now despite being initially hilarious, Two hit mama is lame arse mom love shit, Hensuki barely gets a smirk out of me, Katsutte kami desperately needed a much longer running and rushed AF, arifureta was appalling from the get go, but managed to get worse (long since dropped now), cop craft has serious production issues but is still kinda okay, uchinoko is soothing iyashikei but not much else, dumbbell forgot to actually be funny or ecchi, failing on both counts, fire force is as you said, joshikousei, sounan, and Tejina barely get a grin, and there was sooo much I dropped.
However, it's not all bad. Savage girls is really pleasing, astra and dr stone are both intriguing, accelerator is okayish, danmachi is good fun. Kimetsu no Yaiba really stood out as you said, and based on its pacing desperately needs about 3 more seasons if it's to fully explore all the characters, Tanjrou's evolution, and the downfall of the 12. My biggest disappointment is Mix though. I really expected magic from it like the original Touch anime it's a sequel to, or even better Cross Game (also by the same writer) but instead it's been pretty plain sports anime. Weirdest part of all I can't get my head around is the sound mixing (pun intended) in it. The sound effects are ten times louder than the voices, making it really distracting.