Microsoft has been moving Windows 10 Settings from the old Control Panel to the new Modern Windows 10 Settings app for some years now, and in their latest move, the company intends to move Screen Refresh Rate to the Modern Settings also.
The new feature will be accessible under Settings > System > Display > Advanced display settings and will mean you will no longer have to use Nvidia or Intel’s own custom and sometimes confusing Settings apps.
It is expected to roll out to mainstream Windows 10 users sometime later this year.
Source: WindowsLatest