I don't know about java edition packs, but talking of bedrock edition, i feel like resource and behavior packs uploaded here are limited to the default options if it have subpacks, and it is kind of frustrating not having how to chooses among these options in the website nor in game. I'm talking about it because i was using packs like better foliage, where you can choose the type of leaves in normal game run but can't here, or shader resources so it will not crash by running it at the highest resolution.
Also i noticed a problem about ordering the packs priority, i don't know how it is made by you, but it can be a problem mostly for resource packs and textures.
My suggestion is to increase some function like this firstly in the website, so we can order packs and choose subpack options. I don't know how hard it will be, but you already have made a giant work, i believe you can make it 🛐.
