At the center of our different structures is the word Observant versus the word Orthodox. They don’t align well. You are pulling the measuring string to say that not all forms of orthodoxy are observant. And I’m stretching the yardstick to include more of the non-orthodox as observant.
It’s worth mentioning that the schism between Orthodoxy and Conservative is not an accepted fact throughout the USA. In other countries it doesn’t exist at all.
Even in the Northeast, there is no easy rule for which Orthodox Congregation is more observant.