Ok found issue with Gog Galaxy and Nvdia drivers about blurry image.
Start Gog Galaxy
Close it, Exit it.
Open Nvidia Settings Control Panel.
Click on Program Settings
Sort Recently Used
There will be Galaxy Client Helper Application.
Select Add Selected Program
Set FXAA to OFF in Galaxy Client Helper Application
Launch Gog galaxy from your shortcut
Whatever you do to original Gog galaxy application it doesnt works cause it seems that you have to manually add program and it will give you new link. Happens with all apps :)
Wow thanks a lot! I was going nuts about this problem. I already tinkered around with tne nvidia settings but nothing seemed to have any effect!
Hier hint with the manual addition of the exclusion rule fixed the issue. The reason is:
the "build in" GOG Option in the nvidia driver expects a "galaxyclient.exe" while the "true" exe is called "galaxyclient helper.exe".
THIS is the one that gets added to the list of exclusions when you do it the way you described it and *tadaaaaa* the fonts are crystal clear again.