Come on man, classifying smoke grenades as clutter is not a valid argument here. It’s as if I advocated that Redeye’s smoke grenade should not be a thing (as a matter of fact, there were smoke grenades in ET); like wtf? Besides, even leagues in CS1.6 disallowed certain settings from being abused as smoke grenades there were also subject to weird rendering shenanigans and you could actually see through them under certain circumstances and I played that game for eight years without complaining about it.
I suppose we’re soon to get to a point where I’ll have to spit out what I actually classify as clutter, so make it everything that obstructs the view without any actual intended gameplay use, so, for example, dust, fog, blur, random shaking, bobbing, muzzle flash, blood splatter, dynamic FOV, lens flare, dynamic foliage and the likes.