Grafana Cloud offers flexibility in choosing between single-tenant and multi-tenant architectures, each with its pros and cons, to suit different organizational needs. A single-stack approach, recommended for most users, leverages role-based access control (RBAC) and label-based access control (LBAC) for centralized management, simplified maintenance, and easier integration, though it may pose risks of misconfiguration and limited granularity in permissions. In contrast, a multi-tenant architecture provides complete isolation, better performance, cost attribution, and customizability, making it ideal for managed service providers and regulated environments, despite challenges in cross-tenant querying and maintaining consistency. The choice between these approaches should be guided by an organization's priorities concerning isolation, collaboration, compliance, and administrative overhead, with Grafana Cloud supporting both options through its robust features and generous free tier.