Even the image on FA states “also causes restrictive cardiomyopathy (classic) or dilated cardiomyopathy (reversible)” so I think FA agree with Amboss
amboss article doesnt clarify if either is more common, not sure if the FA 2022 can be interpreted as more common either
Dynamed doesn’t specify either, beyond saying more common with iron transfusion than haemochromatosis.
Just got a BB question that stated dilated cardiomyopathy is more common
let’s just remove the extra field entirely since it seems to be equivocal