Is it possible to display a spinner such as [wpv-filter-spinner] during the Add to Cart AJAX action of a shortcode such as [wpv-woo-buy-or-select add to cart]?
When the site does not process the add to cart ajax request within a short timeframe it appears as if the Add to Cart button does not work, which would lead visitors to leave the page or click multiple times, adding too many items to the cart.
If there was a spinner displayed whilst the AJAX request is processing then visitors would understand that the item is being added to the cart no matter how long it takes.
No, that is not possible.
The wpv-filter-spinner shortcode is for Views events in a search, see https://toolset.com/documentation/user-guides/views/views-shortcodes/#wpv-filter-spinner
The wpv-woo-buy-or-select is not a search event hence you can't use that spinner.
It is in fact a WooCommerce native, but hidden feature (by default WooCommerce will not offer any AJAX add to cart) and hence, it should be asked at WooCommerce, to add such spinners or else