Users can manage Wishlist by adding & removing the products.
The product is added to the Wishlist from the Product listing page or from the Product details page by clicking on the Wishlist icon. You can add to the cart by clicking on the Cart icon.
To clear the whole Wishlist, tap on the Clear All button. All the added products will be removed.
Note: You can make changes to the Wishlist option from the backend configuration. For that navigate to Stores -> Configuration -> Customers -> Wish List -> Under the ‘General Option’, you can Enable/Disable the Wishlist option for the Mobile app.