Web performance tools often use a dedicated cache folder to store optimized CSS, which can be cleared if it takes up too much disk space. Key Characteristics

Data in the cache is intended to be temporary and should ideally be deleted by the program after use.

Cache files often stay long after the application has closed or been removed, leading to a build-up of unused files over time.

Used by tools to temporarily cache data for off-line access or to sync with remote storage, such as FSLogix .

Stores copies of data (images, HTML, API results) so applications don't need to fetch them repeatedly from a slower source.