The impact of variability. The two panels show the ideal and resistive case for MAD models (left panels) and Multi-loop models (right panels). Upper panels: Measure of the variability for the mass-accretion rate s/⟨ṁ⟩, Lower panels: Measure of the variability for the normalized magnetic flux accumulated on the black hole horizon s/⟨ϕ_BH⟩, both for a time window of ±270 M (Event Horizon Telescope Collaboration 2022b) (see Table 1 for details).