What happens when you put egg in hydrogen peroxide?

An Egg (inside) is mostly "Protein"

Egg Shell is mostly "Calcium Carbonate".

Proteins dissolve in Alkaline Chemicals like Bleach.

Calcium Carbonate will dissolve in vinegar in about a week, it doesn't take very long. There will be red floating in the vinegar, it's the dissolved shell.

But the egg itself remains undissolved, although the texture of the yoke is different.