That is exactly how installing an application in MacOS always works. When you run an installer for a native app, and it goes into /Applications, it's owned by t

That is exactly how installing an application in MacOS always works. When you run an installer for a native app, and it goes into /Applications, it's owned by the user who installed it. What Homebrew is doing isn't functionally different, other than /usr/local is in your PATH I guess?