The point is MS was so, so, so late to the party of cross-platform developer tools. And then suddenly they won the game.

It really helps that VSCode isn't intrinsically tied to any other Microsoft products. It doesn't demand you use any specific platforms/languages/compilers, it doesn't demand you use GitHub, it runs on all major operating systems in basically the same way, it doesn't demand or even politely ask that you sign into a Microsoft account.

If it weren't for the name, you'd never know it was even a Microsoft product.

Ah, it makes total sense to me now. Thanks.