The "miscellaneous devices" portion typically contains common, discrete electronic components such as:
Even with the official package, you might encounter errors. Try these fixes: download miscellaneous devices.intlib
altium-libs/Miscellaneous Devices. IntLib at master · Pixel-Pirates/altium-libs · GitHub. Pixel-Pirates/altium-libs - GitHub AD23 and later)
Recommended Feature: "Mechanical Alignment & 3D Visualization Suite" verified method to obtain it.
If the library was not included in your version (e.g., AD23 and later), you can download it from the Altium Other Installers page, which provides a ZIP archive of default libraries.
Because miscellaneous devices.intlib is proprietary Intel code, it is only distributed as part of an official Intel installer. Here is the safe, verified method to obtain it.