Today I installed the Raccoon for Lemmy app. The app itself does not contain trackers or extra permissions.
However, after I clicked on the icon of the installed application, my firewall immediately showed the presence of the appbrain.com tracker.
In other applications for Lemmy, the firewall also displayed many blocked trackers.
I may be wrong since I am not a programmer, but I think that the trackers are loaded along with links to external news sites.
Is it really impossible to come up with protective mechanisms that would prevent trackers from leaking into Lemmy?
Look in developer tools in your browser. You can record the network activity while loading the page, and see whether the access to that site is coming from this page load. (It could also be something else on your system.)