Every other browser has already done this. Every. Single. One. But Google won't until they have added a new way to violate user privacy instead. Privacy is a fundamental part of security, you are not reasonably secure if using Chrome. Full stop.
If you absolutely need the Chromium engine, there's Edge or Brave. Both are pretty much 100% compatible, but don't think security is a joke.
If you work on "security" at Google, and you actually mean it, walk out until third party cookies are disabled by default. Tell managers you won't gaslight people into believing they're safe when Google has placed ad revenue so squarely above security and plans to not solve it for at least another two years.