CITYI've read the manga and seen the anime, I enjoyed both, will be mainly talking about the anime though.
CITY is another comedy manga/anime by the creator of nichijou, it is very similar to this one in comedy style, it's all very fast and very absurd, but I would argue CITY is more lighthearted, less shounen segments and anime girls holding heavy weapons, and more over the top cutesy segments
Nichijou is a very legendary anime, not only for the comedy but also because it was adapted masterfully, it had a very unique and distinctive visual style. CITY aimed to do the same (it's also made by the same studio, kyoani), but they didn't just use the same style as nichijoum instead they just once again did a brand new, very unique and distinctive visual style while remaining the anime charm.
CITY is very minimalistic on it's art, having stuff like the sky be a solid color, the clouds are also almost pure white and they have your stereotypical cloud drawing shape, almost appearing childish, I think this represents the more light tone of city very well
The way city works is that there are A LOT of characters, it has a insanely big cast, each cast member has a very marked and clear gimmick and personality. You got the two girl best friends, you got the butler, you got the mangaka and the editor, etc. Each character is doing it's own thign, and doesn't know all of the other characters, it's not a simpsons situation where every character can be seen hanging out with everyone. However, despite this, a lot of the time their stories do mix in or they can be seen around the same spaces.
Each episode is divided into different chapters, each chapter actually just being a manga chapter. Each chapter usually follows different characters doing funny stuff. The way the jokes themselve work, (note that this isn't the case for every joke, but I do think it's a recurring pattern), is that they usually tend to start very slow, in a scenario that is almost typical, and then they slowly go introducing more and more jokes, until the very end of that segment where it's a barrage of punchline after punchline
The anime adaptation heavily trims the manga, each episode covers an entire volume, I believe that if they actually adapted the whole manga they would have had enough material to a 24 episode season or just another season before they caught up. I do think the actual selection of episodes is good, manga and anime are different mediums, and for comedy that matters a lot, something may be funnier in writing than in anime. The anime does also add a lot of new gags using the animation and the visuals more.
In the manga, in each episode you would almost always see almost every character, with the end/start of the volume (tbh I don't recall which chapters were the oens that did this), usually showcasing everyone, it really gave you the sensation that it was all just one big city, you see everyone doing their own thing and then you see everyone coexisting and it's really cool. Ifeel that sensation is a big lost on the anime though, the moments that showcase everyoen are a lot less spaced out, so you grow more acostumed to them, and the selection of chapters do give more protagonism to characters like naguno, since she now has considerably more screen time than other characters, which didn't happen as much in the manga, breaking a bit of that immersion of it's all just a big city.
I don't think this is inherently bad though, they did what they needed to do to get this adapted, and it's a damn good adaptation, I really enjoyed it
also, fun fact, nichijou, the faster and more violent manga releases in a shounen magazine, while city, the more laid back and family friendly manga releases in a seinen magazine (also in general, CGDCT IS considered seinen, kirara magazine is actually seinen).
Also fun fact number two, CITY was originally a finished manga, but it seems the adaptation was successful enough that it has actually resumed publication, I had never seen a manga actually continue after it was considered done, also nichijou is still publishing to this day. A rank