I'm on Win11 (previously on Win10 I did not recognise this):
Especially when running ExtendScripts (in Adobe applications) the cpu meter shows 0 - 3%, while in the task manager the display of cpu use is > 15% (see attached screen shot).
► What may be the reason for this?

CurrentBuild 22621
OSbuild 10.0.22621.2134
OSdisplay 22H2
ProductId 00330-53204-71214-AAOEM
EditionID Professional
Machine HP ProBook x360 435 G7
BIOS HP; S80 Ver. 01.13.00
Processor AMD64 Family 23 Model 96 Stepping 1

Send that report to Microsoft please. They completely broke the CPU utilization API with Windows 11 22H2 and this affects ALL 3rd party programs reporting per-process CPU usage.

You can see this with your own eyes since it even affects the Windows Task Manager itself (!): go to the Details tab of Task Manager and notice that the same exact CPU under-utilization is reported there.

Not sure what Microsoft has been doing to Windows lately, but they sure are breaking a LOT of things that had been working fine for DECADES (and given how long 22H2 has been out they don't seem very interested in fixing them either).

One thing though: if you install the v23.7 beta, the settings for the CPU meter module have a new 'Use Legacy Mode' option. If you are running the beta, make sure that option is NOT checked and you will see the same ***total*** CPU utilization as reported in Task Manager.

This said, the way Task Manager is now reporting total CPU usage is considered wrong/pretty much meaningless by many experts.

Thank you, Jorge for your answers. Again a proof of the incompetence of M$
So I have to live with