I can't remember when the noise bug was not an issue, I've been playing since console release and it seems to have always been a thing. This might be stupid and everyone will hate the idea but it's something.
Separate environmental noise from noise generated by the player.
Make it so that the only noise you generate is directly related to your actions, not the bush you had to crawl through for a decent shot. Way of the Hunter is much more of a hunting Sim than this game but they've used this since release. Take bush and rocks and grass out of the equation for the noise made by the player and it's suddenly causing a lot less problems