I can point you toward the most of these tools available today.
Configure Icons and Sounds: Use "7-bit" or "CustomizerGod" to replace the modern flat icons with the glossy Aero versions. Benefits vs. Drawbacks The Upside windows 11 to 7 transformation pack
Performance: Some minimalist packs can actually reduce "UI bloat" by disabling modern animations. The Downside I can point you toward the most of
Windows 7 was famous for its blurred, translucent window borders. To achieve this on Windows 11: windows 11 to 7 transformation pack
Functionality: Bring back features like taskbar toolbars and small taskbar icons.
Install a Theme Patcher: Tools like UltraUXThemePatcher allow Windows to accept third-party visual styles.