In this documentation, you'll learn how to edit the shipping method texts on the checkout page.
Step 1: Go to WooCommerce > Setting from your WooCommerce dashboard
Click on the 'Shipping' tab.
Here you'll be able to see all the shipping methods for your WooCommerce store.
Step 2: Edit the shipping method title
Hover the cursor over the 'Flat rate' title and click on 'Edit'.
A popup appears, where you can edit the title.
Once done, hit the 'Save changes' button.
Here's the final output: