Exercise training should be prioritized for improving cardiopulmonary function and exercise capacity in Long COVID, supported by high-certainty evidence. Respiratory muscle training and PEA-LUT offer targeted benefits for respiratory strength and anosmia, while tDCS may address fatigue. Telerehabilitation, as a form of supervision, also improved the effectiveness of the intervention. In contrast, steroid sprays and olfactory training lack efficacy, highlighting the need for personalized, symptom-specific approaches.