Many years I opposed the concepts of dark matter and dark energy as fudge factors to correct other mistakes.
Eventually I realized that stress energy fields like these can be produced by colliding microwaves. There are two possibilities, one scalar and one vector depending on whether or not the Poynting vectors were canceled out when the EM wave was canceled.
The scalar stress quanta are attracted to gravity and interact with nothing else. The vector stress quanta repel gravity and interact with nothing else. There remains a question about anisotropy of CMB. Otherwise the interference patterns meet the requirements of dark matter and dark energy.
DM and DE contain much more energy than CMB, suggesting the interference patterns were made in the distant past. They must slowly revert to microwaves to prevent CMB from disappearing completely.
Antenna design science predicts the two stress interference patterns must exist when a microwave field like CMB is observed.
Maybe researchers have other opinions.
How Did Dark Matter And Dark Energy Originate?