Lets be honest: Android's default volume panel is pretty boring. It does its job, but it's super basic, and many of the options to enhance its functionality are root-only, which excludes a large number of Android users. Enter Noyze Volume Panel, a customizable replacement that doesn't require root access (or any other modifications) and works well.

Once installed, Noyze requires activation in Accessibility settings, but after that it's basically on autopilot.