Interesting explanation; thanks for laying it out.
But that then begs the question ‘What does dark energy interact with?’ Nuthin?
“‘What does dark energy interact with?’ Nuthin?”
Pretty much, as Dark Energy is the expansion of the nothing between galaxies.
Dark matter is real and is looking to have a simple explanation. We can do experiments to learn about it, and have been steadily making progress
Dark Energy remains a complete mystery. There are no good theories. No ides or experiments to learn more.