Motorola's cheapest 5G phone yet, the Moto G 5G Plus, is getting special treatment with an exclusive new app called Multi-Volume. Screenshot from the system menu The app lets you adjust the volume on per-app basis and even mute some of them altogether. The best part is that it can automatically mute some apps based on your usage patterns. There's also a slider in the volume pop-up on the right side of the screen for the app in the foreground and you can also adjust the volume of the notifications and calls separately, which isn't universally available these...