I struggle with concerns about mineral depletion when you have 50%+ of your diet which is solid that probably contain a similar proportion of minerals to the water you consume.
Was about to comment the same thing. Constantly consuming solids and liquids from other places that contain all sorts of minerals, I highly doubt I'll be depleted because of my RO system.
More of a concern to me is that it's almost certain that PFAs etc are contaminating those other sources of food.