Left: Gradient’s slope (Δα) as a function of the nuclear metallicity. The legend shows the Kendall τ test’s coefficients revealing that the slopes seem to correlate with the nuclear metallicity only in the AGN-RPS,(kτAGN = −0.73). Right: Median oxygen abundance of the AGN-RPS galaxies (purple dotted line) and AGN-FS galaxies (blue continuous line), as a function of the galactic radius, spanning a mass range of 10.5 ≤ logM_*/M_⊙ ≤ 11.5. The shaded areas cover the 25th and 75th percentiles of the abundance distribution inside each annulus.