Hi, I am Dave, I will help you with this.
In the 24H2 update to Windows 11, they removed the pencil icon that used to be available to change the quick settings icons on that panel.
Currently, the only available option on that panel is to click and drag the icons around the panel, there is no available setting or method to add/remove the individual icons on that panel, the only thing you can do is to drag the icons you do not use downwards into the bottom of the list to hide them from the normal view.