The subjectiveness of it being a superior product aside.

Brave is chromium under the hood and therefore contributes to the rendering engine homogeneity that leaves Google in control of web standards.

Iirc they are keeping some support for manifest v2 , for now. It'll be interesting to see how that plays out for them both financially and from a technical upkeep point of view.

I'd guess it doesn't last long, but haven't looked at it hard enough to have an informed opinion on it.