Help With Ore Generation

I added multiple ores for a base mod I need for my other mods supplying my needs like ores ingots rods gears and more do I use feature or the built-in ore gen in block options and I'm having trouble with the raw blocks spawning with the ores idk how to make those and what are the defaults I don't want my mod to feel like 1.16< since it's on a new version 1.20.1 I suggest mcreator add more procedure and feature templates meanwhile I need help recreating the raw block in large patches with my custom ores and whether to use the build in, feature or both

like this ( its for bedrock tho )

https://www.reddit.com/r/Minecraft/comments/waz8kz/i_found_a_naturally_spawning_raw_iron_block/

it spawns commonly in lush caves idk if its just like that ore its because lush caves are big and ores are commonly exposed

ty in advance