These encrypted DNS providers actually protect your privacy (unlike your ISP)

While your ISP connects you to the internet, it also monitors your activity. Every time you visit a site, your device sends a DNS request that reveals where you’re headed. Even if the site uses HTTPS, it doesn’t cover your tracks because HTTPS only encrypts content not hide DNS requests, meaning your ISP can see which websites you visit. That data can then be sold, analyzed, or used to build a profile of your browsing habits.