I have just had to downgrade a site from WooComemrce 7.8 to 7.7.2.
The Cart Fragments stops working so when you hover over the cart icon the dropdown no longer works.
Please can you try running a test area your end to see if you can replicate the issue.
Enfold latest version
WooCommerce 7.8 latest version
Cart icon set to always display in main menu
We have reported this issue to our devs.
Also, it does not work as well even if the cart icon is set to Always Display floating on the side