Where Apple is winning the battle is in the classrooms in Australia. They offer steep discounts to high school & Uni students ...
Yeah, Apple's 5%-10% .edu discount is 'steep' - much better than the 10%-70+% .edu discounts Lenovo, Acer, HP, Dell, & Microsoft offer...
(Hint for parents, teachers, & students: check your credit card or store card rewards programme - you can often do better than Apple's Education 'discount'.)
These students often never make the jump to Windows.
In my experience (uni) & that of others I know (hs), it's usually the other way around - Mac users are more likely to jump between both, while Windows users tend stick to Windows. I have my observations & opinions on why that might be, but this isn't the thread to start that argument in
But to get on topic: it's true that professionals necessarily choose the OS to suit the tools they use - but I don't think DEX is really playing in the professional space (yet?). While it has some really interesting features, it misses for several other reasons* (except possibly at the low end, places where everything is done in-house, or if its import/export filters are
really good). Which leaves it competing in the hobbyist / student / semi-pro market - and in at least one or two of those, it's up against Eagle, DipTrace, & Kicad, which are cross-platform(ish).
(* For one, in many ways it reminds me of some estimating/costing software I was very tangentially involved with back in the days when DOS & Windows overlapped. A little local player running on DOS could accept input by either typing in dimensions or importing Autocad files, spoke of things as "sub-assemblies" & "components", & could export a BoM as .csv and print it out in all the formats used by local suppliers. On the other hand, the big international competition running on Windows required you to re-enter all your drawings manually with a tablet, spoke of "recipes" and "ingredients"**, could only export to its own weird format***, and was hard-coded to print out in a non-standard format on US paper sizes.
Guess which held 95% of the market here?)
(** We always figured they assumed data entry & preparing quotes was done by contractor's wives & secretaries...)
(*** #-delimited, IIRC. Which was a big problem in an industry where suppliers typically used a "#nn" suffix for different mods/versions of an assembly...)