Idea Summary
We have apex.util.applyTemplate for JavaScript. A PL/SQL counterpart is already in APEX to render Template Components, Cards, Search results, etc. Please expose and document this API so we can use it too.

Use Case

• For Plug-ins: User's are able to pass a template and the template gets rendered on the server
• Prepare HTML for dynamic content regions / htp.p / custom email etc.