If the conditions are met? The Ores you want do not spawn that way at all apart from height limitations. Only Gems have the Biome Stuff and that is only to determine their Color.
The Ores per 384 Stone thing is something you can definitely fully ignore too, since it is just the Ore Density and nothing else.
Imagine a gigantic Ocean of Flat Foam Bubbles, each Bubble contains one Stone Layer and ONLY ONE Stone Layer. There is about 6 Stone Layers per Rock Type that it can choose from, roughly 5 of which do not contain any Ore, while the remaining one it can choose does have the Ores listed in that Table of the Wiki.
The only real way to find Ores is picking up Rocks and seeing which Ore they are, and then quite frankly digging straight down where the Rock was, to find the actual Ore.
Going with “oh that Stone Layer is Black Granite, it must have this Ore somewhere in it” is a surefire way to absolutely waste all of your time to find nothing.