Yes. We know for a fact Post-Zenkai Goku is stronger than Namek Saga KK10 Goku. Goku said he can't win against Third Form Frieza, and already downscales from Second Form Frieza, while after his zenkai during his battle against Frieza, he managed to fight well against Frieza in his Final Form, the same Frieza that made all his other forms look like jokes, and effortlessly stomped Vegeta, who was stronger than his Third Form
Basically:
Post-Zenkai Goku = Final Form Frieza (Suppressed) >> Frieza Saga Vegeta > Third Form Frieza >>> Namek Saga KK10 Goku
He pretty evidently scales above him, as well as Third Form and Second Form Frieza, as both were accepted to be above Goku. This is also supported by power levels, as with KK10 Goku's power is 900k, while Frieza's is > 1 million