@Ataru
Yeah, I know the mangaka of this series is a woman. I used gender neutral pronouns while talking about mangakas in general.
I can mostly agree with that assessment. I also feel like the simplified versions of the characters have become more streamlined. Like when they're drawn in smaller panels or from far away. I really love that process when mangakas iterate on how they draw their characters from different angles and in different sizes.
On Komi-san some people mentioned that they felt like the art has dropped in quality since the first chapters. I can understand that the characters became less detailed and more stylized, but I can't feel like that's the same as loosing quality.
I really never thought a style change going hand in hand with the tone or genre of a manga shifting. I guess it makes sense as different art styles can help with supporting the most prominent theme of the manga. The most prominent example I can think of is probably the art style change in Ketekyo Hitman Reborn from early comedy to later shounen.