Almost all of those are developed part time as hobby or side projects. They aren’t built on the same scale as other commercial browsers, and a few of them aren’t even trying to.
Also, these are all browsers that are deliberately privacy focused, and are made towards a different audience than Vivaldi. Not to mention that advertising isn’t always inherently privacy invasive. It’s just intrusive.
Librewolf, Floorp, Mercury Browser, Mullvad Browser,Tor browser, Ungoogled chromium, Thorium, Falkon, Seamonkey, Ghostery Browser?
Almost all of those are developed part time as hobby or side projects. They aren’t built on the same scale as other commercial browsers, and a few of them aren’t even trying to.
Also, these are all browsers that are deliberately privacy focused, and are made towards a different audience than Vivaldi. Not to mention that advertising isn’t always inherently privacy invasive. It’s just intrusive.
Who said that people ‘need’ to use a commercial browser?