Quick Setting Tweaker is not working on zorin os 16
Could you provide some more context? Are you getting any errors? Do you have screenshots?
If youre using this extension -[QSTweak] Quick Setting Tweaker - GNOME Shell Extensions, it works only on 43+ gnome shell version. Zorin 16 doesnt come with 43 by default but you can install it.
To check your current gnome shell version, use this command -