Engineers did that. Zuck just saw no business advantage to keep it private. He agreed to open-source them to popularize whatever they build in Meta to make hiring engineers easier, since they already know whatever they use inside Meta

Just get OrganicMaps

I moved from FF to Vivaldi (couldn’t find better browser, and form that to LibreWolf) due to how shitty the Mozilla Corp is. We need a fair player here but doesn’t seem that we gonna have anything anytime soon

It’s a scam and they pushing it pretty aggressively.

Use Firefox. Brave is Chromium. Brave’s crypocurrency stuff is shady, I need a browser not a crypto. uBlock (arguably the best extension) properly only works on Firefox. There is LibreWolf (Firefox mod) if you want ready to use, hardened browser.