Introduce a functionality to display all utilised styles within a file, enhancing the ease of examination of the full project and facilitating the straightforward replacement of incorrect library styles (colours, typefaces, effects).
Do you mean all ‘saved’ styles? @i-kat If yes, they are already shown at one place when you click on the canvas.
Or if you want to see every unlinked style that is used so you can link them to an existing library of styles, then yes that would be a great feature to include. May be some kind of notification in the styles panel?
Meanwhile, you can use plugins like Style Sync to identify unlinked styles.