Firefox with these settings from Librewolf looks very much equivalent: https://gitlab.com/librewolf-community/settings/-/blob/maste...

I would disagree. Most of the fingerprinting protection is enabled by the user.js, of which LibreWolf inherits the efforts made by arkenfox[1][2]. Many of the most significant preferences themselves made it into Firefox by the Tor uplift project[3].

[1] https://github.com/arkenfox/user.js

[2] https://librewolf.net/license-disclaimers

[3] https://wiki.mozilla.org/Security/Tor_Uplift