The famas kill was clean Every red dot in that box was his shot, if there was no recoil it would be much closer to that black line.
And its not like he had time to toggle it off on the AK where his spread was much greater
Sv_showimpact 1 btw, and for walls I prefer r_Drawothermodels 2 so I dont wireframe the environment.
I see nothing suspicious at ticks/demo provided and vote no hacks, there was no indication of walls either.
Edit: as for Blend, yea spots look like walls, but its blend. You have every reason to assume the enemy is there at the start of the rounds, and he ignores CTs when walls would have seen them, so clean demo there.