Headless Magento 2 means the website’s front part and back part work separately. It uses something called APIs to send information between them. This lets developers use new tools like React to build the website’s look. The Magento 2 headless approach helps create fast, app-like websites using special tools. It also uses ways to make pages load quickly. These ideas help make Magento websites faster and easier to change. https://webkul.com/magento2-headless-development/