What don't you like about Julia for "serious work"?

It and StaticTools.jl is getting better, e.g. with adding Bumper.jl as a dependency for fewer memory-handling limitations. I think it might be very usable for many situations already if you can live with the stated limitations. One of is not supporting Windows, which might be fine, but if you want to support all platforms, that’s not possible and I’m puzzled why Windows doesn’t work, since Julia itself is cross-platform. Possibly related to the runtime (since it’s not supported) or compiler supprt, I suppose could be easily fixed, though not sure it’s a priority. Even with it not important for many individual users, knowing I could target all platforms would be a good thing, so I’m curious to know (for sure) why this one limitation.