I use an app called TrackerControl on my Android phone, and it caught several trackers on DDG, so I stopped using it. Do I know for certain that the app is absolutely accurate? Nope, but it’s a good FOSS that I have been using for a long time and developed a trust relationship with, so I’ll avoid what it warns me about. App is available on F-droid if anyone wants to try it.
WOW, I’m so fucking surprised I almost fell out of my chair.