Tbh IDC

I think it all boils down to preference.

But if I had to say in a more observant tone, maybe it's because the OP Mc trope, when executed badly, waters down the mc into only the strong character traits without the vulnerability of human emotion and nature more often than not. And an mc who gets everything they want with an apathetic sort of demeanor oftentimes lacks depth (especially if they have a bland motive), which might feel repetitive for readers.

tbh I think overpowered MCs can be interesting when done right and aren't devoid of deep motives, emotions, and actually fun personality