An extended reality (XR) support system establishes a communicative link between an XR presentation system and a multi-access edge compute (MEC) system operating on a cellular network. The XR support system identifies a parameter associated with a computing task to be performed in connection with an XR experience presented by the XR presentation system. The XR support system also identifies a condition associated with a capability of the XR presentation system or the MEC system to perform the computing task. Based on the identified parameter and the identified condition, the XR support system selects at least one of the XR presentation system or the MEC system to perform the computing task and then directs the selected system to perform the computing task. Corresponding methods and systems are also disclosed.