Many server owners do not configure their anti-Xray correctly. If an admin forgets to add Deepslate Diamond Ore to their config file, a "bypass" pack will see it. The pack isn't bypassing the system; it is just exploiting human error.
These packs do not show ores through solid stone. Instead, they make regular stone semi-transparent while highlighting natural air pockets, cave systems, and abandoned mineshafts. Because servers must reveal real ores when they touch air blocks, finding caves exposes legitimate ores safely. Texture Redefinition anti xray bypass texture pack
In the case of forced server texture packs, a bypass pack is designed to overwrite the server's forced models, re-enabling transparency so the player can peer through the blocks. The Evolution of the "See-Through" Advantage Many server owners do not configure their anti-Xray