KDE Plasma Widgets: Show No Sensor Data

[gruzgewuz]

I tried the following KDE widgets “Network Speed” or “Individual Core Usage”.
None of them showed me sensor data to choose from:

What should be installed to get there sensor data to choose from?

Operating System: Clear Linux OS 42170
KDE Plasma Version: 6.1.4
KDE Frameworks Version: 6.5.0
Qt Version: 6.7.2
Kernel Version: 6.10.5-1458.native (64-bit)
Graphics Platform: Wayland