A notification chime might be needed, but not as loud as game sounds or music. Alternatively, a phone call can be more important than background music that's playing while working.
An iPhone's ring volume and alert intensity can be set to a different level than music and other media once the setting is enabled. Apple provides a very simple toggle in the Settings app that makes this separation possible, although the wording is a bit confusing. In the Settings app, go to 'Sounds & Haptics.' There is a switch labeled 'Change with Buttons.' When enabled, which is the default, the volume buttons control the level of the ring tone, alerts, and media at the same time. When disabled, the ringer and alert volumes can only be changed in Settings, while music, podcasts, audiobooks, and video sounds can still be raised and lowered with the volume buttons.
Other iPhone Volume Controls
An iPhone's volume can also be controlled by swiping down from the top-right to open Control Center. The tall, thin audio level display can be dragged up or down to raise or lower sound intensity. Pressing and holding the volume slider opens a larger version allowing greater control of the audio level. Sounds from phone calls and alerts can be silenced quickly by using the physical mute switch that's just above the iPhone's volume buttons, but it's important to to flip this on again or there will be a risk of missing calls.
Do Not Disturb and Focus modes affect notifications, which could delay or even block sounds from some apps. Alarm sounds and volume levels can be adjusted in the clock app and the Health app as well. Naturally, most apps that play sounds provide on-screen controls that adjust the volume or mute audio. While the physical volume buttons and mute switches are the most common ways to change audio levels, it's quite nice to be able to adjust music, game, and video volume without affecting the intensity of iPhone calls and alerts.
Change iPhone Media Volume With AirPods
Apart from using the iPhone controls, Apple also lets s adjust volume on their AirPods. If a has the AirPods Pro 2, this is very easy. All they need to do is place their thumb on the AirPod stem, and then slide their index finger up or down on the flat touch control to increase or decrease volume. This control works well to increase media volume while watching videos, listening to music, or gaming.
If s have the AirPods 3 or AirPods Pro (first and second-gen), they can also change volume controls using Siri. Using a command like 'Hey Siri, turn up the volume' or 'Hey Siri, turn down the volume' will change the volume levels on the iPhone. If s also happen to have an Apple Watch, they can adjust the iPhone media volume on their AirPods by opening Now Playing and turning the Digital Crown.
Source: Apple