yo_bj, 
"Big Publishing is clearly seeing nothing but dollar signs as apps like Hoopla gobble up identity-linked data on readers—and so it would be natural to put our hope in public libraries, which view patron privacy as a fundamental right essential to a functioning democracy." - https://www.fastcompany.com/90996547/e-books-are-fast-becoming-tools-of-corporate-surveillance
Bonus fun fact - OverDrive's reading history setting only hides the history. The data is still being collected - https://ldhconsultingservices.com/deception-by-design/