Extra Ore Armor

Data Packs don't exist on Bedrock, they use a completely different coding language (so no, it won't work on Bedrock unfortunately).

Yes but also no... All the materials can be used to trim armor, but if you trim the custom armor the texture becomes dyed leather (because I used armor trims to make the textures). Functionally they work the same, its just the textures that get messed up. I made sure to make the dye color match the original armor as close as I could to make up for it.

This was before Mojang added support for custom armor textures, I haven't gotten around to updating it because it would involve remaking a majority of the data pack (and Mojang keeps making changes every update, so its hard to keep up).

will this be fixed? i would like to implement this into a realm i host as i think it would suit more than most other armor packs

When loading in my datapack-enriched world into Realms and downloading it back, it seems to normalize them (in the form of deleting files...). This seems like a 1.21 issue and not a datapack issue, my apologies.