I want to get all kinds of wool without getting the dyes to color the sheep. But what color wool do you get from sheering a rainbow sheep in bedrock edition?
The color of wool a disco sheep will drop is unaffected by its rainbow coloring. Instead, it will drop wool of its original color before the rainbow effect was added.
When shearing a jeb_ sheep, you will get the same wool as its color before it became jeb_. If it was blue before you turned it into jeb_, for example, you'd get blue wool.