The FreewareGenius site details how to use the Classic Shell utility to restore the up-pointing arrow to your Explorer toolbar, without changing anything else.

Classic Shell's no-frills visual style and ample customization options make it easy to get the Start menu just the way you like it, even if you're using Windows 8. Blazing-fast live search ...

Windows only: Start menu replacement utility Classic Shell adds back some of the missing features in Windows 7 or Vista that used to exist in XP—like ...

Open-Shell is a free software that brings the classic Start Menu & more back to Windows 11/10 desktop. This Classic Shell alternative will customize your desktop experience.