I frequently hear that screen protectors which mimic paper surface lead to a much faster abrasion of the tip of the Apple pencil. Is this the same in your case?
I haven't seen fast abrasion with this cover. Pencil tips seem to last a really long time.
https://www.amazon.com/gp/aw/d/B00G4SA1FG/ref=ppx_yo_mob_b_i...