As usual in the comments, programming.dev chuds care a whole lot about performatively not caring and get enraged at the thought of other people caring, thus the advocacy for Brave Browser entirely on the basis of “melting snowflakes” the way thumbheads roll coal because they want to “trigger” people that would prefer an inhabitable environment. 
I’m not a techy 🤷♀️
My bf likes opera, other people i know prefer others and they all use VPNs if that matters?
I don’t really get how hyper optimised you need a browser since I’m not someone who uses a desktop or laptop a lot so I’m not the person who can appreciate what you are looking for on a technical level.
There are plenty of people here or lemmygrad who could probably though. Make a thread asking for advice and I’m sure someone would suggest something if you don’t get any suggestions from this comment.
Then politely you don’t seem like you really care about these issues to inform yourself so why would you want to change?
Seems like a weird disconnect that you care enough about the issue listed to want to change if options are available but don’t care enough to read an article never mind do some research?
That just comes across as virtue signalling tbh.