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What is “Other” storage on a Mac, and how can I clean it out?

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The final word from Apple on Managing the " Other " Category

Other: Contains files that don’t fall into the categories listed here. This category primarily includes files and data used by the system, such as log files, caches, VM files, and other runtime system resources. Also included are temporary files, fonts, app support files, and plug-ins. You can't manage the contents of this category. The contents are managed by macOS, and the category varies in size depending on the current state of your Mac.

These are the files that cannot be categorized.

The file types considered Other in Mac storage may include:

• MacOS system files and folders.
• Temporary files.
• Common document and file types (for instance, PDF, DOC, PSD).
• Archives and disk images (such as ZIP, ISO, DMG).
• App plugins, add-ons, and extensions.
• Files from your library (such as Application support, iCloud files, and screensavers).
• Cached files (user cache, browser cache, and system cache).
• Files not recognized by a Spotlight search, such as a virtual machine hard drive.

Try following the steps on this Apple Support page: Free up storage space on your Mac - Apple Support

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