Radio detection fraction of QSOs at 150 MHz as a function of the accretion-disc reddening in the MWQSO sample. The accretion-disc reddening is estimated from the SED fitting for each source and is parametrised by the E(B − V)_BBB parameter. The solid line shows the trend considering only catalogued sources (≳5σ), whereas the dashed line considers all QSOs detected down to ∼3σ. The shaded area represent 1σ binomial uncertainties for each bin. A clear positive relation is apparent, where the radio detection fraction increments with increasing dust-reddening, in agreement with QSOs detected in the DESI survey (black circles).