In this documentation, you'll learn how to change the Shipping Method section title on the checkout form.
Step 1: Go to the 'Fields' tab in Checkout
Click the pencil icon on the 'Shipping Method' section.
When you do so, a popup shows.
Step 2: Edit the 'Shipping Method' title
Once done, hit the 'Update' button.
Once done, hit the 'Save changes' button. This will save all the changes made.
Here's the final output: