Apple hides older operating systems in the App Store, but they are accessible via direct links on the Apple Support website. If you use a Mac to visit the Apple Support page for "How to get old versions of macOS," you will find a link that opens the hidden El Capitan page in the App Store.
Even years after its release in 2015, the demand for a remains surprisingly high. Whether you are looking to relive nostalgia on a vintage iMac, need to test legacy software, or want to run a virtual machine on a non-Apple system, obtaining a safe and functional disk image is the first hurdle.
For many Apple users, macOS X El Capitan (version 10.11) represents a golden era of desktop computing. It was the twelfth major release of macOS, known for its rock-solid stability, refined user interface, and focus on performance improvements over its predecessor, Yosemite.