How to mute & unmute
Select the server, category, or channel that you want to mute.
Right-click and select Mute channel/category/server from the menu.
The selected server, channel, or category will be grayed out when muted.
To undo, right-click the selected channel and select Unmute channel/category/server from the menu.
Alternatively, you can manage your channels or categories in Settings > Notifications.
Navigate to Notification overrides.
Select the channels you want to manage from the drop-down list.
You can use the toggle button to mute/unmute channels.