If it's FREE, you pay with your data.
https://davidgerard.co.uk/blockchain/2020/06/06/the-brave-web-browser-is-hijacking-links-and-inserting-affiliate-codes/ #Brave
If you want to keep your data private, use #Firefox and other privacy-friendly services. Here are some tips: https://tutanota.com/blog/posts/how-to-leave-google-gmail/