Cart Fragments or Full Page Reload for Accessible Add-to-Cart Updates?

Goal

Choose between WooCommerce Cart Fragments and a full page reload for cart updates after an add-to-cart action, prioritizing keyboard and screen-reader navigation.

Constraint

Cart Fragments update totals and mini-cart contents asynchronously, but focus often shifts to the page header, leaving screen-reader users without confirmation of the change. A full page reload preserves focus and announces the new cart state, yet it adds latency and extra server round-trips. Disabling fragments may improve accessibility, but WooCommerce provides no built-in toggle or guidance, and some themes hard-code fragment hooks that may break visually when disabled.

Decision needed

Which approach better balances accessible focus management with perceived performance, and under what conditions should fragments be disabled versus retained?