Just to confirm, this is unpleasant behaviour: on my Dell laptop, apt-index-watcher's CPU spiking causes the fan to start up, then stop, every ~5 seconds. Killing apt-index-watcher fixes the problem and the fan has remained off since then.
Just to confirm, this is unpleasant behaviour: on my Dell laptop, apt-index-watcher's CPU spiking causes the fan to start up, then stop, every ~5 seconds. Killing apt-index-watcher fixes the problem and the fan has remained off since then.