As far as I understand, leaks are just data sent to any known data collector. The ones you are seing come from browsed pages, I have the same result with Firefox, nothing related to the browser itself.
Browsers do use all these trackers, else you would not be able to browse the internet. If you have ever used TrackerControl app, you know for browsers you turn of TrackerControl
Though the IronFox browser I use, makes a couple of my Websites functions unuseable .