Is it a new artist for season 2 or did the previous artist's style just change?

It's a new artist

Oh okayyy

It's actually the same artist, their style just changed

Oh yeahhh just checked and it is the same, it's crazy how much their style changed in just a year. The styles are so different but I noticed some little details and expressions that were the same (esp the chibis) which I assumed was just the new artist trying their best to duplicate the older one. But turns out it's the same artist. You can actually kind of see it developing into the new style towards the end of season 1.

I did a Google check as well. The style change is crazy

I love the art style of season 1 and I am hesitating to continue this story because the new art style is so stiff

They probably hired a new post-correction assistant (color assistant), this is done by a studio or a team during production. So some changes are expected.

Just read a couple chapters ahead (like up to 54-55) so you can understand what happens afterwards and then maybe you can put it on pause bc there's nothing significant happening right now. Personally though I like the artstyle, it's a lot more detailed.