Examples include hospitals that look for references to computer science in the CVs of candidates for a nursing or data entry job, and retail stores that reject people who apply for a store clerk position but don't list "floor-buffing" as one of their skills
They link this article but paywall :(
making cv like seo scam site
Joshua Fluke is a great youtuber who criticises corporate/linkedin culture and he has some good content on this.
Basically, his main advice is to pretend you still work at your most recent place of employment, allow employers to contact references without hesitation, and when they ask for contact details give your friends phone # and coach him on what to say.