Indeed you wouldn't. It's the ego and the shadow that would make you differ from your multiversal counterparts -
And even then, should another you exist with the same exact colors of the soul, it could easily express differently in her as compared to you.

For example, how you and I have the same color of shadow, yet it's clear we differ greatly in the reason why.

To be honest, this is something I've thought about quite a bit. How different versions of myself may differ, just by having a simple color change within the soul...