Mushroom Biome Overhaul/Update

Mushroom Biomes have not gotten any changes since they were added more than 10 years ago. The only reason why we go there in the first place is to get mycelium, then never again, so. Why not give us a reason to go there. 

It would be pretty neat if we not only got new mushrooms, but, also got them in their giant forms. Not only that, but we could add new mobs to the mushroom islands. Like fungal versions of the familiar mobs.

Not only that, but. There could be types of mushrooms that only spawn in the Mushroom Biome. Like a rare Golden Mushroom that only spawns/grows in the mushroom biome. This mushroom could be used in order to enhance the effect of potions by placing one in a brewing stand with a regular water bottle, creating the "Stronger Potion" effect to whatever potion is brewed with it. 

In the caves of the Mushroom Biome, and randomly scattered across the world, there could be a Mushroom Cave, generating below layer 0. inside of these caves could be Deepslate covered in an item called "Sheet Mycelium" which can be harvested by sheering it. This Sheet Mycelium can act like a grow bed of sorts for mushrooms and will convert any dirt/grass blocks it is placed on over time. 

Within these "Mushroom Caves" could also be Glowing Mushrooms in their small and large versions. They could come in several colors and emit a light level of 5, and 15 in their giant form. Golden Mushrooms could be more common in these caves.