Is iPhone 15 screen more scratch-resistant?

My understanding is the glass formula used on the 15 Pro is the same glass as was used on the 14 Pro. Ceramic Shield is sort of a misnomer. It honestly doesn't mean the glass can't be scratched. It is much harder to break. There's a tradeoff in making glass which is harder to scratch or glass which is harder to break. No one has yet figured out how to make glass equally hard to scratch or break. And Apple opted for glass harder to break, because the price to replace the screen on an iPhone is one of the singular most expensive parts. There used to be loads of people on this forum upset their iPhone screen, which had no scratches broke in a fall. We see far less of those complaints since Ceramic Shield became the glass of choice (not just by Apple, but by other premium cell phones too). But since the screen can be scratched, it makes sense to put a screen protector on a device which costs at least $1000 the minute it is unboxed. Screen protectors are relatively inexpensive and can be easily replaced. The screen on the iPhone itself, not so easy or cost effective.