For what is worth, Brave has some well-known white hackers on board as developers, and thus it is probably one of the most secure browsers out there. Not so keen on privacy though, and personally I seriously regret their bundling of cryptocurrency services with the browser -- will never be my choice unless for temporary use because of this, even it can be disabled, it should not be there.
Vivaldi is probably the most reasonable middle ground, better than corporate data-mining Chrome, full team and a stable company behind it, not the best at anything particularly, but good enough.
Projects like Bromite are great and laser focused, but relying on a single developer has obviously its risks as we see here.
It's sad that the browser wars are over. One browser to rule them all is not good for anybody. ( Yes, but Safari, but Firefox, but, reality is what it is. )