Yes, immediately on resume, one poor little "logical processor" is pegged - by the HWiNFO process.
If I disable PresentMon, I can make the high CPU go away - yes, it requires not just the option reset, but an actual restart of HWiNFO.exe to make the excess CPU usage go away.
Unfortunately, sleeping and resuming will still jump HWiNFO's CPU usage up - even with PresentMon disabled, the app restarted, and things looking happy before the sleep/resume.
So, back to 5200 - anything after that exhibits this undesirable behavior.
While it doesn't actually seem to care about graphics, I will mention I am using an RTX 4070 with the next-to-latest NVidia driver (537.34).