Thanks for joining the Graphics community.
More scaling options are available if you change other than native screen resolution. I am afraid the Intel Graphics Driver does not provide an option for "No Scaling", however, this would be nice feature for future drivers. I thank you for this feedback.
If you are able to display full scale image while playing games, this means the graphics controller, video BIOS, monitor's EDID and drivers are working correctly.
Thank you for the response.
I would really appreciate it if that feature is considered.
For now, setting the desktop resolution to the (lower than native) in-game resolution and then setting the newly available display scaling option to "Center Image" seems to provide the desired result.
Thanks for the feedback.