Jen started liking herself more by the end, but I don't know if one could call that an arc necessarily, since it didn't really affect her behavior all too much. She maintained the same amount of arrogance throughout the entire show without facing any consequences for that behavior either, which is different from other characters in the MCU who have been done better because they were allowed to grow out of their arrogance (like Iron Man).

But when it comes to humor...maybe there is like a compilation of the jokes? But the writing was so bad it was hard to catch them. Maybe I'd have to squint a bit more to see the punchlines. But it's not a matter of the humor being "not for me"; Teen Titans Go and Friends humor is "not for me" (to be fair some of TTG's humor is bad as well, but not all of it), but the She-Hulk humor was just bad.

While I do understand that the show is targeting a different demographic, that doesn't excuse how bad it is. That reminds me of the folks who say that it's fine for kids shows and movies to be bad because they're just for kids. And it's not even possible to target the same demographic and make something good; like I would say that Hawkeye and Ms. Marvel (which was certainly not for me) were far better and also targeted a somewhat similar audience.