If you have created favourite styles and wish to delete them, please follow these steps.
1. Go to File Options Favourite Styles
2. Select the catalogue you wish to delete a favourite style from and then select the favourite style.
3. After you have selected the favourite style, click Delete to delete it.
4. Click OK to confirm delete.
If you wish to rename a favourite style, please refer to: How to Rename a Favourite Style in 2020 Fusion