My car's windshield has/had a cazzillion little pits. I tried 0000 steel wool. Meh. I took a chance on Wizards Mystic Cut Smart Abrasive. OMG! This stuff works, and all it took was some elbow grease. Those little pits are gone!
https://www.amazon.com/dp/B07FL6PG8W?ref=ppx_yo2ov_dt_b_fed_asin_title&th=1
https://www.amazon.com/dp/B07FL6PG8W?ref=ppx_yo2ov_dt_b_fed_asin_title&th=1