If you have been using SketchUp for any length of time, you already know the truth: vanilla SketchUp is a powerful sketch tool, but to turn it into a professional-grade architectural, engineering, or interior design weapon, you need extensions.
CleanUp³: Automatically removes hidden geometry and optimizes your model to reduce file size.
Scenario: An interior design firm using SketchUp 2021 (office standard) collaborating with a freelance renderer using SketchUp 2024.