Underrated... I lot of the stuff I watch is stuff not even god knows exist lmao. Besides Precure as a franchise, and if you want a specific title of Precure I can easily say Suite Precure or Splash Star.

Dr. Stone which is probably my current new favorite anime, Welcome to demon school Iruma-kun, Undead Unluck, To Be Hero X.

Overhated... the thing is that now I barely interact with fandom spaces, so I can't tell if a series is overhated or not.

I think the only series I can think of is Black Clover, is been over 10 years and people still joke that is a copy of Naruto, when they couldn't be more different.