npub1xt7wmvtpswlza54mku4a04xtwdrw9xx4p48cppn4d4nrt9w2xzasg0aztg (npub1xt7…aztg) Indeed ... "top" and "xload" have shown virtually zero CPU usage.
Latest news is that I've installed TLP and the fans have spun down. So the symptom of spinning fans has gone ... I still don't know the original cause.