Tor/Mullvad are better for anonymity use cases, but when you go tweaking it (settings, add-ons) you are no longer blending in with the pack. LibreWolf suits a more privacy-oriented use case I think since it’s not aiming to mimic Tor, but just have privacy settings mostly maxed out & you opt into everything you are comfortable with, such as cookies—whereas base Fx you have to opt into more privacy.