Sass couldn't be installed in NEAR project

Question

I have just created an app with npx create-near-app --frontend="react" near-app-project

Then I installed SASS with yarn add sass as stated in https://create-react-app.dev/docs/adding-a-sass-stylesheet/

Now I get this error saying Uncaught SyntaxError: Unexpected token '<'

As stated in the documentation, I have already renamed global.css to global.scss

I also tried uninstalling sass with yarn remove sass but the error still shows up.

What is causing this error? If NEAR app is built on top of ReactJS, the steps to installing sass should also be the same, isn't it?

Looking forward to your help.