[casi18]

iirc: originally brave embedded metamask but with their own branding, metamask then changed their license so that other companies couldn't do that without paying a license fee, so the brave version stayed on the older version without the license fee and slowly became outdated and less useful. I guess this is them updating their fork from that point and adding some features back.

[bbondy]

This is a new rewrite built into Chromium from scratch. No shared code with the original MetaMask fork.