I found a strange site or link to download Brave - is it safe?
Honestly, I can't tell you. But the best idea is to always be wary of any site that is not 100% guaranteed official.
There have been fake websites with malware-infected Brave downloads, and there have also been fake Brave sites just to push someone's referral link (which no longer work anyway).
The safest and best place to download Brave will always be directly from the official site: https://brave.com/.