[Malte Müller]

I’ve always assumed he did. Tall Guy is the person to ask, if he still pops by here.

I just searched a bit since it interested me. It seems he hasn’t, it is not named on any entry about him when film scores are listed. Seems they just used his music later on. This article refers to the conductor Frank Strobel also did compile his music for the movie:
https://www.schostakowitsch.de/Berichte/Panzerkreuzer-Potemkin/

And hier in English about that on his own site:
https://www.frankstrobel.de/en/projects/battleship-potempkin

But maybe Tall Guy knows more.