According to a report from MSPoweruser, an official Realtek app has been spotted in the Windows 10 Microsoft Store. The app is not yet available for download, but it looks to be a port of the Win32 version which allows users to customize their sound profiles.
According to the app store listing, the Microsoft Store version of the app "provides the best audio experience with the Realtek Audio Codec." Unfortunately, trying to install it will give an error code for some users, likely due to the app not yet officially being ready for all devices just yet.
Anyway, you can try the download for yourself in the link below. Once its ready it can prove to be a pretty handy app, giving you yet another (more modern) way to control your volume and sound experiences. Let us know in the comments below if you managed to download and get the app working.