https://youtube.com/shorts/yMVIMg6azrM

Sean Carroll just did a long solo episode of his Mindscape podcast (preposterousuniverse.com) which includes a survey of the various research areas attempting to explain the dark matter.

It’s a long episode but it in he describes what to look for in modified gravity claims.

This is not to say the specific claims from this group are incorrect or lacking. I’d consider the podcast episode a tool to help you analyze and form an opinion on what is being said.