It’s been clarified. The dev confirmed in this comment that ad trackers & data collection are removed when you pay ($3.49) to remove ads: https://lemmy.world/comment/3811201

Boost does have a paid option. It’s a $3.49 one time fee to remove ads, which also removes all trackers and data collection.

No. If you tap on mute, there’s options for user, community, or instance but not post.

Thank you for making ad-free affordable ♥️

https://blog.mozilla.org/addons/2020/09/29/expanded-extension-support-in-firefox-for-android-nightly/

If you use Beta or Nightly, you can turn on dev tools and use a custom addon list from a collection in your user account. https://blog.mozilla.org/addons/2020/09/29/expanded-extension-support-in-firefox-for-android-nightly/