I’m fine with companies making money, the problem is the ethics and sustainability of the business model. If venture capital is involved, there will usually be an exit strategy that often involves growing quickly and selling to a surveillance capitalist. If the product is free, the prevalent business model is to exploit users’ data, behavior and free will. If a company can survive without doing any of that, great. Ads are fine if they are ethical. Cliqz was criticized for being bankrolled by Burda, which was ok with me, but they didn’t survive. I don’t know if Brave is sustainable, and if it will be in the long run. If it does and is ethical, I’m mostly fine with what they are doing.
I do have a general concern with the way Brave works. I think it’s good that Brave Rewards are opt-in, and I’m fortunate enough that I don’t have to care, but I wouldn’t like to create a future where poor people are compelled to sell their privacy and those who are better off can protect it. It’s a hard problem, the only solution I can think of is Aral Balkan’s suggestion of having essential software funded by taxes. That’s controversial and creates different problems (e.g. independence from the State) but it’s something to consider.
I think I care about the browser because it’s practically the only thing I use I check my RSS feeds (with TinyTinyRSS), my e-mail, I have my calendars and tasks in OwnCloud… Communication is a problem, but Jitsi and free chat alternatives work for me, the problem is getting people to use them instead of Hangouts, Zoom, Slack, etc. Other than that, browsing is the only thing I do.