networkQuality
I recently discovered the networkQuality command in macOS Monterey. Previously, I relied on fast.com to check my internet speed on macOS.
networkQuality
==== SUMMARY ====
Uplink capacity: 26.401 Mbps
Downlink capacity: 174.401 Mbps
Responsiveness: Low (103 RPM)
Idle Latency: 13.250 milliseconds