Well I’m not a fan of Brave or Google as companies for individual reasons, look up about Brave’s CEO for example.
I prefer to use an aggregator so at the moment I’m using searxng; the main downside I’ve found is that instances tend to get blocked from indexes eventually so you do have to move around a bit.
I mean I would think twice about using them as a single source for search, the same as I would think twice about using Google as a single source. That’s why I prefer to use an aggregator.