I downloaded the new bridge, seems like it only shows the sharpening (preview only) of a RAW file at 100% used to show at all magnifications and it's extremely annoying, I don't browse through or edit my photos at 100% obviously and not being able to tell if they are sharp or not unless I laboriously zoom in on each one is a royal PITA.
The sharpening also seems to be far harsher than usual.
That’s correct, 100% or higher since you can’t really judge the effect if less (or so the logic goes). It also speeds up previews. Now there is a preference that controls if the sharpening you see in ACR is applied ONLY to the preview or both preview and final image. Check that preference.