There probably were, I just imagine it's an insanely small percentage. Especially during barbarossa. Similar to how the right wing factions fought alongside communists to resist Japanese occupation in China and Korea. Like of course there's going to be some small groups, but strategically any sane group would've picked a side (and any non-fascist one would've sided with the Soviets).

It's also such an insane proposition to be partisans fighting both sides without external support that I doubt they have many survivors or ancestors anyway.