I don't know if it's just my imagination but since the patch I am seeing fog where there wasn't any before.

It's as though they have added fog to reduce draw distance.

It's like there is constantly a haze now.

Even inside vault 81 and the inside of home plate in diamond city looks hazy in the distance.

Has anyone else noticed this?

I have noticed more fog and frame rates seem to be worse in some places. Also textures taking a while to go from medium to whatever setting they're supposed to be at, around the city. For instance I was running away from a group of enemies, hid somewhere and noticed textures loading in in front of my eyes, cigarette machines, dumpsters etc. Probably wouldn't notice it if you were just running around not paying much attention but it seems draw distance is set pretty low.