I don't buy that. Physics and common sense still work normally.Also, on the note of giant hammers/2H weapons -- this is Cyberpunk 2077. These sorts of weapons are no more or less practical than katanas, whips, etc. that we see in 2020, because people have beefed up arms that can handle them like they're toys.
Nobody goes near someone who waves a 1 meter sledge like it was a toy. They shoot him. And even in close quarters, the reach and handleability of those weapons is too long and cumbersome to be of any practical use against someone with a simple combat knife.
Katanas and whips can be very fast and practical in close quarters. (Though whips less so.)
I don't think it's a good idea to have that kind weaponry here.