Is the Oort Cloud a bubble?

Excuse me, could you please clarify something for me? The Oort Cloud, as we understand it, is a theoretical region of icy bodies surrounding our solar system at a vast distance. It's not typically described as a "bubble" in scientific literature. Are you suggesting that the Oort Cloud might have some sort of spherical or enclosed structure, akin to a bubble? Or is there a particular theory or hypothesis you're referring to that I might not be aware of? Could you elaborate on your question so I can better understand your perspective?