The fact of the matter is at least one former US Atty, Chuck Rosenberg, reports that the Steele dossier has stood the test of time quite well.
Rosenberg writes: Publicly available materials ''buttress some of Steele’s reporting, both specifically and thematically'' The dossier holds up well over time, and none of it, to our knowledge, has been disproven.'' - Source - Chuck Rosenberg, former US Attorney writing in Lawfare
https://www.lawfareblog.com/steele-dossier-retrospective