You can't pay me cents to pick a worse browser. It's like the days when there were those pay to surf companies. The promise of money is nice, but most end users don't benefit that much from it. There's a lot more incentive for the company for their product to work than there is for the users to adopt it.
I mostly use Brave on my phone because it makes the browsing experience faster and removes most ads by default. I won't change to another browser on the iPhone anytime soon. Having said this, I haven't used the payments feature outside of web3 (Ethereum DApps).
I don't watch ads with any interest or attention in general, but I often have Youtube playing some live concert on the background while I work and ads cut midway forcing me to change tabs so I can skip them. The idea that instead of breaking my concentration to stop an add playing I can simply let them and that _that_ could be a little money generating activity seems appealing.
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Secondly, Brendan Eich already confirmed that there is a 70% revenue share for users. Let's pretend the advertiser is paying 10 cents per view, then you would get 7 cents per ad watched. 70% is a lot.
Thirdly, even if it's just a few cents, it's better than nothing. Things build up over time. Before you know it, you'll have a few $. That's awesome. You can get a month of subscription on a ton of websites for like $3. That's also 3 songs on iTunes store, or a paid app on the app store.