UI Framework — Best Practices — SCSS Separate from Javascript or Bundled Together [on hold]

Hi everyone I'm a UX designer for business software and we are using Angular. We currently have an SCSS framework and then we made a component library.

edit I don't know what happened to the rest of my question. Sorry about that.

We have an NPM package that has the components with the necessary javascript/typescript. The SCSS is separate.

We're still trying to determine if keeping those separate is a better approach than bundling the javascript/typescript together.

What approaches have all of you taken to have a clean easily maintainable UI library?