Stuttering frequently on highest and lowest settings.

Today's patch mentioned in the notes: Added support for Unreal PSO Caching (shader pre-compiling) to address and reduce the amount of shader stuttering experienced on PC. 

Is this actually in there and working properly?

Following up that, just saw this post on reddit from a user saying they had a shader compilation after reinstalling the game. Can anyone here confirm this? I can't imagine this is true as surely someone would have mentioned it before now in the time since the patch went live, and there would be some visual proof somewhere to back it up. Can't tell if they're trolling or what, seems insane to me, but with all the bugs in this game I wouldn't be that surprised to learn this whole thing was also bugged for whatever reason. Blah