As JerryRig has shown, there's been no progress beyond level 6 on Moh's scale for the scratch test despite years of hype. No glass has come close to getting to level 7. Victus is more about toughness than hardness.
A switch to Corning Gorilla Glass Victus 2 is just one of the ways that Google is attempting to distinguish the Pixel 8 Pro from last year's Pixel 7 Pro. Initial drop and scratch tests suggest that the upgrade to the stronger glass type has paid off, just days before Google begins shipping Pixel 8 Pro pre-orders.