@bitprophet Short answer: no. Less short answer (which it sounds like you've already received but I'm happy to re-enforce): yes, because open source.
I'm most partial to Librewolf for privacy and performance reasons. It's default settings are very privacy focused so expect to check/uncheck a few boxes before it feels like a normal browser that doesn't require you to log into your email again every time you start it.
Waterfox is good as far as user experience is concerned, but due to a bit of a weird history, I remain iffy (they were acquired by an advertising company (same one that owns startpage.com, and MapQuest, among others) and then apparently the original dev. reacquired it? Cool, but I have to assume money changed hands to make that happen. I don't know the details, I just have a weird vibe about it.
People seem to like Vivaldi. It's got it's charms if you like extra features. I choose to stick with Firefox forks because maintaining what little competition remains against a complete Chromium monoculture (at least on the non-Mac side) has value to me, even if I've lost all faith in Mozilla's ability/desire to act according to their stated mission.
If I wasn't a normie rather than a giant dweeb with a vested interest in this sort of thing, I'd probably like the cut of Vivaldi's jib. It's employee owned, which seems nice, but it is still a private company, and it is still closed source, and money must be made somehow, and as I am distinctly not a normie, and I do have a deep interest in this sort of thing... the vibes are off for me once again.
In any case, I'm just not a swiss army knife browser kinda guy. Just serve me websites; no sidebar please.
Do I think a situation where insisting on a non-commercial and open source browser, in a world where browsers are so large and complex that there may never be a truly viable, non-commercial, and open source browser again is sustainable? Not really. The web is not the web we once knew, and interoperability is no longer a promise. I assume my days of using a fork to get an uncompromised experience as in privacy, without having a compromised experience as in being unable to watch DRM-protected content, for example, are numbered.
/got a little carried away. my bad