Another example is that macOS periodically sends records of which apps you’re opening to Apple, due to OCSP cert revocation checks: https://www.howtogeek.com/701176/does-apple-track-every-mac-app-you-run-ocsp-explained/

I realize this is ostensibly to enable a security feature, but if your threat model includes American software companies & oligarchs tracking what you do on your computer, it’s still something to be aware of.