I recently replaced the center of 3 windshield sections, on mine, the center is tempered, the outer two are laminated, I don't know the reasoning for the different types. My center glass spontaneously shattered one fine morning, later discovered it was binding in the frame, so thermal expansion?
Point is, tempered must be cut to fit and sent out to be tempered, there is a lead time that varies with the vendor. Once tempered, no adjustment is possible. Tempered is tougher, but may not stay intact if damaged, although mine did, but it won't delaminate or cloud up at the edges. Laminated can be cut in a shop, but won't take as much impact as tempered. Car windshields are laminated, side windows are usually tempered.
Had a glass shop install mine, it was bedded in a urethane they dispensed from an air powered caulking gun. The glass "floats" on the urethane.