Ever been stuck down the metro in St. Petersburg and lost in complete darkness, I’m sort of copying my comment on the senses This, but here is my idea.
Basically when you walk into a object it displays a blue grid or blob that visually shows you where the wall or object is while limiting it to only what your player is next to or near.
Also fixing the lighting would help.
I honestly would prefer a prompt and then perhaps the ability to “feel” which might take a few seconds, but afterward you would get a temporary outline of what it was you “felt”