Sitecore Experience Manager (XM) Cloud is a next-generation, cloud-native SaaS CMS offering headless architecture for agile, omnichannel content delivery. It features a central Cloud Portal, headless services, GitOps support, and tools like Pages and Components. Benefits include faster deployment, automatic updates, scalability, and a composable, pay-as-you-go model for developers and marketers.

https://sam-solutions.com/blog/sitecore-xm-cloud/