I guess amps can be overrated in the sense of them being overpriced or too unobtainable (Blueface, IIC+, Rev C, Hermansson, Dumble, Gjika, etc.), but they at least deliver in having a special sound no other amps can do the same way
Overrated in my book is an amp with lots of demand that isn’t warranted based on the quality of its sound. I don’t wanna disrespect guy’s here that like some amps with some of my findings for that, but one I can more safely say is Fortin. I tried a Natas and Meshuggah and they were decent at best. Neither to me sounded like an amp worth $3k or more