TIL Apple added a networkQuality utility to Monterey which measures the quality of your device’s internet connection much like speedtest.net and fast.com.

λ networkQuality
==== SUMMARY ====
Upload capacity: 14.696 Mbps
Download capacity: 21.661 Mbps
Upload flows: 20
Download flows: 12
Responsiveness: Low (103 RPM)

What’s interesting about it is that it measures your upload and download in parallel by default, which is more aligned with real-world usage than running them back-to-back like other tests do.