Sound Notification Sometimes Disappear

### What Happened?

The sound notification icon on my Elementary OS sometimes disappears. This issue happens intermittently and is temporarily resolved by restarting certain system components. Particularly, this issue is more likely to occur when adjusting the volume while playing a video in fullscreen mode.

Temporary Fix:
Running the following commands temporarily resolves the issue, but it reoccurs after some time:

1. killall gala && gala --replace &

or

2. sudo systemctl restart lightdm

### Steps to Reproduce

Boot up the system.
Play a video in fullscreen mode.
Adjust the volume (increase or decrease).
Notice that the sound notification icon may disappear from the system tray and never appear, even when I reboot the system.

### Expected Behavior

The sound notification icon should remain visible and functional in the system tray at all times.

### OS Version

7.x (Horus)

### Software Version

Latest release (I have run all updates)

### Log Output

```shell
shuqihere@ROG-Zephyrus-M16:~$ killall gala && gala --replace &
[1] 122066
shuqihere@ROG-Zephyrus-M16:~$ libmutter-Message: 19:18:37.872: Running Mutter(Gala) (using mutter 42.9) as a X11 window and compositing manager
Window manager warning: Trying to re-add keybinding "switch-to-workspace-last".
Window manager warning: Trying to re-add keybinding "move-to-workspace-last".

(gala:122072): libmutter-CRITICAL **: 19:18:38.128: meta_sound_player_play_from_theme: assertion 'META_IS_SOUND_PLAYER (player)' failed
Window manager warning: META_CURRENT_TIME used to choose focus window; focus window may not be correct.
Window manager warning: META_CURRENT_TIME used to choose focus window; focus window may not be correct.
Window manager warning: META_CURRENT_TIME used to choose focus window; focus window may not be correct.

(gala:122072): Clutter-CRITICAL **: 19:18:53.121: clutter_animatable_get_actor: assertion 'CLUTTER_IS_ANIMATABLE (animatable)' failed

(gala:122072): Clutter-CRITICAL **: 19:18:53.121: clutter_animatable_get_actor: assertion 'CLUTTER_IS_ANIMATABLE (animatable)' failed

(gala:122072): Clutter-WARNING **: 19:20:15.881: Can't update stage views actor [:0x5fb7786bf0a0] is on because it needs an allocation.

(gala:122072): Clutter-WARNING **: 19:20:15.881: Can't update stage views actor [:0x5fb778a5acc0] is on because it needs an allocation.

(gala:122072): Clutter-WARNING **: 19:20:15.881: Can't update stage views actor [:0x5fb778a5a360] is on because it needs an allocation.

(gala:122072): Clutter-WARNING **: 19:20:15.881: Can't update stage views actor [:0x5fb778cea730] is on because it needs an allocation.

(gala:122072): Clutter-WARNING **: 19:20:15.881: Can't update stage views actor [:0x5fb778cec340] is on because it needs an allocation.

(gala:122072): Clutter-WARNING **: 19:20:15.917: Can't update stage views actor [:0x5fb7786bf0a0] is on because it needs an allocation.

(gala:122072): Clutter-WARNING **: 19:20:15.917: Can't update stage views actor [:0x5fb778a5acc0] is on because it needs an allocation.

(gala:122072): Clutter-WARNING **: 19:20:15.917: Can't update stage views actor [:0x5fb778a5a360] is on because it needs an allocation.
```

### Hardware Info

Intel Core i7-12700H (12th Gen)
NVIDIA GeForce RTX 3060 Mobile / Max-Q
16 GB memory
1 TB storage