I'm using a german translation pack but it doesn't translate everything in the Shipping Method Section (in Checkout Process). Which files are responsible for rendering out this section ? I want to change the strings in the Code manually
Well the file for shipping methods is rendered from here
/vendor/magento/module-checkout/view/frontend/web/template/shipping.html, however the title of it is an admin configuration setting.
To change the method/carrier title you need to go to
Stores - Configuration - Sales - Shipping Methods, select the shipping method you use and there should be two fields that says "Title" and "Method Name".
Note: If you're using multi stores make sure to change the scope of the store you want to do changes.