I had no issues with scratchs on all my previous iphones, 6s plus, 5c, 4s etc.
I had iphone 8 plus , scratched quite easily.
Got XS Max last year and without dropping it, got a small couple of scratches you can see in certain lights. So this is the first time I have put tempered glass on my phone. Never had a case and still dont, never had screen protector until now. Seems the coating is weaker to me.