So Google replaces third party cookies with FloC? What did Safari and Firefox do when they limited third party cookies? If the answer is that they just improve

So Google replaces third party cookies with FloC? What did Safari and Firefox do when they limited third party cookies? If the answer is that they just improved privacy while not “compensating” in any other way, then why would I use chrome? Also, when things like these happen in chrome, I assume it doesn’t happen in Chromium, ms Edge? So if we want to run a chrome-ish browser and not have FloC we’ll just run any non-Google chrome browser?