Brave however is riddled with Crypto and AI crap. It doesn't have any useable support for multiple profiles, too: last time I tried it, it would end up showing various errors on every startup and you couldn't have two profiles in the same window.
Once you have more than one profile, you'll see the switcher in the top right.
Also, turn off all crypto/ai stuff in settings. I did and I never see it.
It's really not that much.