Saitama and Garou serious punch collision.

Did Blast punch his hands faster than Saitama and Garou? : r/OnePunchMan

If Cosmic Fear Garou and Saitama both use serious punches, what would happen to the surrounding area? - Quora

I think it's safe to assume Saitama isn't actually going all out, considering his table flip doesn't even begin to compare to the combined serious punches. But I could be wrong tho

Did Saitama and Garou just obliterate billions of stars in the sky, or is that a black hole? - Quora