I totally agree with your comment, but we must differentiate between privacy and security. Is macos good from a privacy point of view? No but it is better than for example windows. Is linux in general better from a privacy point of view than macOS? Yes, it is. Is Linux in general from a security point of view better than macOS? No.

Although the latter is not very nuanced, for example a vanilla fedora is much better than a vanilla arch linux from a security point of view. But a vanilla macOS is more secure than a fedora, that's my opinion of course.