A family of Microsoft products that enable users to capture, organize, and reuse notes electronically.
Hi,
Welcome to Microsoft Community and appreciate your time taken for sharing detailed information. I understand that the thickness of the pen in OneNote varies according to the resolution. Please correct me if I am wrong. I am glad to offer you help on this issue.
Unfortunately, the thickness of strokes does change at different resolutions.
The reason for this change is to show the handwriting more clearly at lower resolution and provide finer feedback at higher resolution.
However, it is inconvenient for you to switch frequently under different resolutions and different scaling ratios.
We regret the inconvenience.
It seems that there is no suitable solution at present except for fixed screen resolution.
Maybe you can click the file > option in the application to submit your requirements to the development team, and you may make some changes in the later version update.
I hope the information provided is useful for you. If you have any additional questions, please do not hesitate to reach out to our support.
Best Regard,
Jackn | Microsoft Community Support Specialist
*Beware of scammers posting fake support numbers here."
*Kindly Mark and Vote this reply if it helps, as it will be beneficial to more community members reading here.