“…Both aspects have been investigated when the coupled incommensurate fractional-order systems were handled by Salem and Alnegga and Salem et al in [15,29]. However, in more recent times, numerous outcomes associated with those aspects have, moreover, been informed widely (see [1,14,21,[30][31][32][33][34]). In more concrete terms, some useful theoretical tools, like the so-called Banach contraction principle and Krasnoselskii's fixed point theorem, have been employed to explore the existence and uniqueness of solutions for several nonlinear FODEs such as the implicit FODEs [35], the fractional-order Cauchy problems [36].…”