I believe Brave browser has fallen out of favor but I'm not an expert on why

Interesting. Please let me know if you have a better alternative. Ideally I'd like to just run chromium but then I have to build it myself or use some build by some untrusted person so I've decided I'll trust Brave for now...

Chromium-based browsers like Brave are ideal for security [2].

An ideal solution for privacy and security would be running Firefox+user.js in Qubes OS [3], or for even more anonymity, Tor Browser in Qubes-Whonix [4]. However, even this isn't bulletproof, and a 3 letter agency can still determine who you are with techniques like keystroke deanonymization [5] or other techniques [6] like traffic analysis. Tor is also not reliable for anonymity because the project is kind of a shitshow [7], so there's really nothing you can do to truly hide.

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

[2]: https://madaidans-insecurities.github.io/firefox-chromium.ht...

[3]: https://www.qubes-os.org/

[4]: https://www.whonix.org/wiki/Qubes

[5]: https://www.whonix.org/wiki/Keystroke_Deanonymization

[6]: https://www.whonix.org/wiki/Warning

[7]: https://www.hackerfactor.com/blog/index.php?/archives/906-To...