The Windows 11 Taskbar a été re-written entirely (lots of articles on this) and n'est pas modifiable in any workable way - au moins as Windows 11 is maintenant.
There may be changes down the road, but il n'y a pas de concrete information on this.
The Windows 11 Sound Icon is également corrigé in place (Looking at my own Windows 11 système). (In Windows 10 the Sound icône can be hidden).
Il y a some paramètres Paramètres, Système, Sound but these are very limited.
