Scanning nitrogen-vacancy (NV) center microscopy has emerged as a powerful platform for investigating the nanoscale magnetic behavior of superconductors. Here, we exploit the quantum properties of single NV centers in diamond to probe both static and dynamic phenomena in superconducting systems. By leveraging the extensive toolbox of quantum sensing, a wide range of pulse sequences can be implemented to extend the detectable frequency range from static signals to the tens-of-GHz regime. We further incorporate higher-order correlation protocols to access complex fluctuation dynamics beyond conventional measurements. Combined with nanoscale spatial resolution, these capabilities establish scanning NV microscopy as a versatile tool for exploring strongly correlated quantum phases in superconductivity.