I personally find existing religions I have looked at (mostly Christian religions) insatisfactory and haven't found the need to dig too deeply into what else is out there. I am fine with not knowing why certain things are the way they are without replacing it with faith.

As I find with many atheists, I believe there may be some higher power, but it does not affect my daily life (outside of the way in which religious beliefs have become societal norms or vice versa).