  In this work we investigate the intertype (IT) domain in strongly disordered
ferromagnetic superconductors with a Curie temperature lower than the
superconducting critical temperature. In such unique materials, the coexistence
of superconductivity and ferromagnetism allows for the exploration of both
unconventional superconductivity and interplay between magnetism and
superconductivity. The study utilizes an extended Ginzburg-Landau model for the
dirty limit to calculate the boundaries of the IT domain which is characterized
by a complex vortex-vortex interaction and exotic vortex configurations. The
analysis reveals that the IT domain in dirty ferromagnetic superconductors is
not qualitatively different from the clean case and remains similarly large,
suggesting that disorder does not hinder the exploration of the rich variety of
IT superconductivity in ferromagnetic superconductors. This work expands
understanding of the interplay between superconductivity and magnetism in
complex materials and could guide future experimental studies.
