  The absence of superconductivity (SC) in Cr-substituted BaFe$_{2}$As$_{2}$
(CrBFA) is a well-established but poorly understood topic. It is also
established that the suppression of the spin density wave transition
temperature ($T_{\text{SDW}}$) in CrBFA and Mn-substituted BaFe$_{2}$As$_{2}$
(MnBFA) almost coincides as a function of the Cr/Mn concentrations,
irrespective of the putative distinct electronic effects of these
substitutions. In this work, we employ angle-resolved photoemission
spectroscopy (ARPES) and combined density functional theory plus dynamical mean
field theory calculations (DFT+DMFT) to address the evolution of the Fermi
surface (FS) and electronic correlations in CrBFA. Our findings reveal that
incorporating Cr leads to an effective hole doping of the states near the FS in
a way that can be well described within the virtual crystal approximation
(VCA). Moreover, our results show orbital-specific correlation effects that
support the Hund localization scenario for the CrBFA phase diagram. We found a
fractional scaling of the imaginary part of self-energy as a function of the
binding energy, which is a signature property of Hund's metals. We conclude
that CrBFA is a correlated electron system for which the changes in the FS as a
function of Cr are not related to the suppression of $T_{\text{SDW}}$. Rather,
this suppression and the absence of SC are primarily due to the competition
between Cr local moments and the Fe-derived itinerant spin fluctuations.
