as per your linked persons ramblings, at the bottom:
Web Browser
If you’re worried about Pale Moon’s issues, know that one of our community chatroom members is developing a fork called Web Browser that is focused on stability, privacy and customizability even more so than its predecessor. Pale Moon still has auto-updates, OCSP and a few other unsolicited requests by default - as well as an extension blocklist. Web Browser either lacks PM’s issues (no automatic connections or an extension blocklist) or is in the process of fixing them (using system libraries instead of bundling your own, disabling WebAssembly by default). There’s a NixOS package and a SlackBuild (archive) with support for other operating system coming soon (or you can compile from source). The guy is looking for additional developers, so go check the project out if you want to help.
im using librewolf myself as the most viable firefox version
just a few points than ill drop it as well, they talk alot about what they call “freetardism” their explanation honestly just sounds like conspiracy, there is a lot of hyperbole in some of their explanations, like with vivaldi.
anyway before we dive deeper into the ramblings of a tinfoil lover ill get back to the point.
there is always pros and cons to all options, if you go from say chrome to brave, safari to epiphany, or any other steo towards more privacy is better than nothing, which choice is the best is of course subjective.
as mentioned my main is librewolf, my secondary browser is vivaldi. one of the reasons being, i like its smooth design, its not so strict chainsaw approach like librewolf, it also is the only chromium browser that actually and properly implements treetabs, specifically into its sidebar as a panel.