Not clear what decking the trem bridge means...here’s a couple close up pics of the bridge:
A core PRS trem bridge floats above the body. It is not decked, meaning the trem is not directly in contact with the guitars top.
The six screws on PRS trem have a groove just below the screw head. The holes that the screws go through on the trem, have a knife-edge that sits in the grooves, allowing the strings tone to be flattened by pressing down in trem bar, or sharpened by pulling up on the trem bar. The upward motion is only slight, but unlike most other trems.
Your trem looks like it is slightly oriented forward (higher at the back), however it may be the angle of the photo. It should be parallel to the guitar top.
There is a video on YouTube (search PRS bridge) by John Mann, which is useful.
WARNING - Under no circumstances should the trem screws (those fixing the trem to the top of the guitar) should be adjusted whilst the strings are at tension. Doing this will result in a potential of snapping the screws.
Apologies if I’m telling you things you already know.