No, not any more than any creation of God. We can perceive His existence by all of the things He made, not but especially because of dark matter and energy.
Gravity is a property of matter and energy. Dark matter and energy were discovered when more gravity was found than could be accounted for by the regular (called "luminous") matter and energy.
Almighty God Jehovah is Spirit, not matter. As our Creator, He creates from nothing, and has full control of dynamic energy, but he is not energy. Isaiah 40:25-26 says so.
Almighty God still exists, and is the Creator of the universe, but He decides who finds Him - and it's NOT with a telescope or a knowledge of gravity. Those who seek him sincerely and earnestly will do so, and he is not far off from each one of us. Acts 17:26-27
More information can be found in the videos and links below. (Please excuse the ads from youtube - I wish I could remove them, but can't.)
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www.britannica.com/science/dark-matter
Dark matter, a component of the universe whose presence is discerned from its gravitational attraction rather than its luminosity. Dark matter makes up 30.1 percent of the matter-energy composition of the universe; the rest is dark energy (69.4 percent) and “ordinary” visible matter (0.5 percent).
https://www.youtube.com/watch?v=QAa2O_8wBUQ&feature=youtu.be
https://www.youtube.com/watch?reload=9&v=QAa2O_8wBUQ&feature=youtu.behttps://youtu.be/YQq0VdJApzU