Adjusting the optical size axis to ensure text is perfectly legible whether it's a tiny caption or a large headline.
Creating custom-weighted logos or headers that fit perfectly within a layout's specific dimensions. Can I buy a variable font? - Adobe Community
Minion Variable Concept is an Adobe Original typeface designed by Robert Slimbach. It is an OpenType Variable font that allows users to adjust properties like weight and optical size along a continuous spectrum rather than being restricted to a few preset styles (like "Regular" or "Bold").
Using a single file to adapt to different screen sizes without bloating load times.