Very poor performance shopify but after two years nothing has changed. Developing a complex pricing structure is not possible with shopify at the moment.
I try the same example with GraphQL and have the same problem. Zero Price and no title in the cart
I think the only way is the Shopify Plus cart update:
https://shopify.dev/docs/api/functions/reference/cart-transform#example-update-operation
Putting this feature in Shoify plus makes no sense to me. Also, many small shops have dynamic pricing from external services that need to insert a price for a product in a fast time.