The reason exposure and development adjustments are sometimes advocated when switching between the same emulsion in 35mm and medium format is because of minor differences in film base thickness.
(Medium format film bases are sometimes thinner than their 35mm counterparts. Kodak specifies this on their website; dunno if Ilford and others do. This is not a reference to emulsion thickness, an entirely separate matter, one which film manufacturers don't seem to specifically address.)
Only experimentation and experience will determine whether any adjustments are necessary for you and, if so, how much.