I have seen many people in this community either talking about switching to Brave, or people who are actively using Brave. I would like to remind people that Brave browser (and by extension their search engine) is not privacy-centric whatsoever.
Brave was already ousted as spyware in the past and the company has made many decisions that are questionable at best. For example, Brave made a cryptocurrency which they then added to a rewards program that is built into the browser to encourage you to enable ads that are controlled by Brave.
Edit: Please be aware that the spyware article on Brave (and the rest of the browsers on the site) is outdated and may not reflect the browser as it is today.
After creating this cryptocurrency and rewards program, they started inserting affiliate codes into URL's. Prior to this they had faked fundraising for popular social media creators.
Do these decisions seem like ones a company that cares about their users (and by extension their privacy) would make? I'd say the answer is a very clear no.
One last thing, Brave illegally promoted an eToro affiliate program making a fortune from its users who will likely lose their money.
Edit: To the people commenting saying how Brave has a good out-of-the-box experience compared to other browsers, yes, it does. However, this is not a warning for your average person, this is a warning for people who actively care about their privacy and don't mind configuring their browser to maximize said privacy.
Vivaldi tab management is pretty great. Vivaldi is designed for power users that always have a ton of tabs open. There are a bunch of other features as well that I use regularly, but I could see that it might be a bit of a learning curve for those that just want to install a browser and immediately know where everything is. There has been more than a few times that I discovered yet another efficiency using Vivaldi and felt like I was getting more from it. Definitely a browser for someone willing to spend time configuring it for their use case. Keyboard shortcuts ftw!
Vivaldi definitely has a learning curve. It's great once you have it set up how you like (which, granted, is way too time consuming for the average user). But the tab stacking and tiling is so immensely useful for me, I can't use other browsers without missing those features now.