Recent results of cosmic-ray studies with IceTop at the IceCube Neutrino Observatory

The IceCube Neutrino Observatory is a cubic-kilometer Cherenkov detector that is deployed deep in the Antarctic ice. The purpose of the surface detector IceTop is to measure extensive air showers of cosmic rays with primary energies between 100 TeV and 1 EeV. By combining the events measured by IceTop and the in-ice detectors of IceCube in coincidence, we can reconstruct the energy spectra for different primary mass groups. Therefore, we expect to provide essential information about the origin of cosmic rays, in particular, in the transition region from galactic to extra-galactic origin of the cosmic rays. In this contribution we present recent experimental results, as well as prospects by the foreseen enhancement of the surface detectors of IceTop and the future IceCube-Gen2 surface array.