Generally arcs feel a little bit underutilized. Some are fine as just background detail without really being resolved (Mu Qi's home situation is fine as background for example, it's not something that can be really 'solved' and Mu Qi moving out of the shadow of it is the focus). Similarly it's not a bad thing for plots to not revolve around heavy emotional drama necessarily, but be aware that this is overall a very lighthearted text.

Similar but not quite the same is that the work glosses over some plot points that you'd generally expect to get at least a little focus. For example, Su Yanxi coming out being a minor thing and parents not minding is perfectly fine, but it's never actually mentioned until Su Yanxi's mom says that at some point Su Yanxi came out. It's not a big deal, but not actively showing moments like this occasionally does detach the viewer from the work.

The final ending arc kind of doesn't really match the tone/feeling of the rest of the work. Qin Yu is in general a rather flat character even compared to the rest of the straightforward work, and very much is just a cartoon villain with weak motivations and frankly low intelligence. I didn't mind the fact that it was resolved easily though, as Qin Yu's plot was very weak and Mu Qi plowing through it with little effort matches with what I'd expect from the tone, characters, and plot.

Another issue is that the ending arc is intrinsically connected to the Hu Ying/Qi Wei subplot, which is generally rather underdeveloped and rushed. While they got a few early scenes showing their relationship, the process of them getting together really was done in basically two chapters at the very end, and the bulk of the romance part of the relationship really was condensed to the last fourth or so of the book.
The ending blurb part was somewhat unusual; it's basically using four sentences to briefly describe what a longer book might put into extra chapters. This would be fine and not worth mentioning if not for the hilarious last sentence of the book, which casually mentions that Hu Ying and Qi Wei broke up then got together again out of absolutely nowhere with 0 extra context. It honestly comes off as a punchline more than anything.