Does anyone have any experience or tips for whether screwing things through a floating laminate wood floor would restrict the floating aspect and cause problems? I'm going to minimize that, but there are a few items that need to be secured to the floor.
All the way through. Since the floor isn't attached to anything but itself, it wouldn't help much to screw to the laminate. People must have to do this unless they find a way to just lay the laminate around everything.
What I did is limit the need for screwing through the laminte.
When I had to, I drilled a larger hole in the laminate only. Like 1/4", then drove an 1/8" screw (for example), in the center of that hole down into the subfloor. That should leave enough for expansion.