Extended Reality (XR) stands at the forefront of enabling the Metaverse, promising transformative advancements in human-machine and interpersonal interactions. Achieving seamless XR experiences, however, requires the capabilities of 6G networks, as current 5G solutions fall short of addressing XR’s dual demands for enhanced mobile broadband (eMBB) and ultra-reliable low-latency communications (URLLC). Bridging this gap calls for innovative scheduling frameworks tailored to XR’s stringent requirements. This paper introduces a delay-reliabilityaware optimal downlink scheduling framework for XR services in 6G networks. The proposed approach integrates a novel delay tracking mechanism to optimize the scheduling process, ensuring that a maximum number of XR users meet stringent delay and reliability criteria. Simulation results demonstrate substantial performance gains, with the proposed framework significantly outperforming conventional scheduling techniques, making it a compelling 6G scheduling solution for XR applications