Hi John,
I've not seen the issue for 3 weeks now. Not sure exactly which of the following (or combination) has solved it but here's what I have done so far:
- run sfc /scannow (as administrator) .
- Installed intel command centre as disabled panel refresh (on battery and plugged in)
- disabled hardware acceleration on all office apps (including teams and outlook) and browsers (edge and chrome)
- updated the latest intel drivers (Version: 27.20.100.8187 released 5th may)