Realme
Change Notification Volume Separately auf Realme
On a Realme phone, notification sounds run on a separate volume channel from ringtone, media, and alarms. This is why dragging the ringer slider up or down has no effect on how loud app alerts or incoming text messages sound.
The notification volume controls three things at once: push alerts from apps, incoming SMS tones, and system notification sounds. If this level is set too low, you can easily miss messages even with the screen on. If it is set too high, every app alert interrupts you at full volume, regardless of your ringtone setting.
Where to change it
Open Settings ➔ Sound & vibration and locate the Notifications slider. Drag it to the level you want; changes apply immediately, no restart needed.
If notifications stay silent even after raising this slider, check that Do Not Disturb or a Focus mode is not active, since both override this setting and mute alerts regardless of the volume level chosen.