The fact that the lines and the labels are not aligned makes this visualization very weird.
You just posted a link to some app most people don’t know about a “better Signal” , with no explanation of why. That’s classic spammy vibes.
It says unknown (mobile?) client for me too, using Sync with Bluetooth and location enabled and Play Store Services installed.
Whoever wrote that image tracking over-hyped it?
The fact that the lines and the labels are not aligned makes this visualization very weird.