Key Differences:
Nature: Type 6 is described as a civilization with multiple beings, whereas Type 7 is a single all-encompassing entity.
Control: Type 6 controls multiverses, while Type 7 controls the entire omniverse.
Existence: Type 6 exists beyond the space-time continuum, while Type 7 is omnipresent across all of existence.
Questions and Knowledge: Type 6 beings can still have questions and discover new knowledge, whereas Type 7 knows everything without the need for further inquiry.
Ultimacy: Type 7 is portrayed as the ultimate level, whereas Type 6, while immensely powerful, is not considered the final level of civilization.
In summary, the main differences lie in their scope of control, nature (individual civilization vs. single entity), the concept of omniverse, and the level of ultimate knowledge and power. Type 7 is presented as the ultimate and all-encompassing being, while Type 6, although incredibly advanced, is not the final level of civilization.
Put a little work into trying to get the best answer for your question, hope this clarifies it.
I changed the eye colors for you:
Pretty wild synchronicity today. Walked into work, clocked in and there was a small meeting. The guy that sits next to me which I always associated with Zeus is getting catheterized because the doctors think he had a heart attack. The synchronicity ties back to crafting an etherial weapon and this thread discussing activity in the second body: