delaunayisation
No, it wasn’t. If you look at religious iconography, you see Jesus sitting on a globe regularly. Kings were endowed with globus cruciger, a representation of Jesus ruling over the globe. Sure there were some people who must have believed in flat earth but they were about as serious as the modern flat earthers.
That’s unfortunately simply untrue. You can’t, with a straight face, claim that there is any actual competition to Photoshop, Revit or a myriad of other, non-programming use-cases. It’s easy to use Linux when you’re a developer, it’s almost impossible if you’re an architect. Sure, you can use wine. Good luck, half of photoshop builds are borked. All Revit has garbage rating on wine. You just can’t professionally escape windows if you’re in a wrong profession.