Last I’d checked, Vivaldi isn’t open source, so do you have any way to verify their privacy claims? Don’t trust black boxes.
Like, if you like it as a browser, that makes sense, it’s ui is well designed and customizable. But every company tries to claim to be privacy respecting, and it’s rarely true.
Looks like most everything has been answered, but I’ll note that if you struggle with arch, endeavor os has the same underpinnings while being a fair bit more beginner friendly (graphical installation, easy drivers, utilities to rank mirrors and update your packages, etc.). Arch wiki is great for questions that have already been answered, endeavor forums are useful for asking questions when the wiki falls through.