I checked two other computers.
1) i5-12400, Windows 10 22H2 19045.3448.
2) i5-3550, Windows 10 22H2 19045.3324.
Both have HWiNFO v7.68-5300 installed. Antivirus is also avast free antivirus.
On i5-12400 also no effective clock is shown. But on the old i5-3550 everything works.
Changing the...