Seriously, we need different terms for the ‘net cut down on light’ ones Tesla gives you/sells for all the overhead windows and the ones you can get for the windshields that we all have had for our old cars (and these) that are solid material/foil coated/whatever.
Maybe one is a ‘shade’ (overhead) and the solid windshield one is a ‘shield’? As you say, the front one is ‘heat shield’ also...