X-trans 3 produces the best black&whites in the whole brand!
Just used the Acros film simulation and also on Lightroom and honestly I've never had such beautiful bws on my x-t4 or x-t10.
I love the contrast, the shadows and the highlights this sensor gives!
They've been shot on an x-h1 with a XF 35mm f1.4 R or a XF 16-55 F2.8 LM WR.