A common misconception about classical music performance is that it is a creative art. In fact, it is the opposite, more akin to athletic competition where the standards against which individuals are judged is highly objective.
Rhythm, intonation, and above all, the faithful reproduction of the composer's intent, are the parameters under consideration.
The notion of "expressivity" in classical music derives from a miniscule range of dimensions deemed acceptable by its participants, which are entirely inaudible to modern ears. A slight rubato here, more vibrato there, it's all irrelevant to the listener whose TikTok playlist flits between violently contrasting genres on a 10-second basis.
This is why I hesitate to mention that I am a musician when I say that I am a conductor. To the extent that to be a musician is to be creative, conducting is not at all musical; it is far more scientific and managerial.