Earlier quoted context omitted.
Monetarily, Visual Studio. There are tons of enterprise development workflows, and plugins, that probably will never be ported into VSCode, from their .NET and COM implementations. Now in terms of mindshare, and gateway drug into Microsoft ecosystem, definitely VSCode. It is also the best Web IDE, for the return of timesharing development, sorry cloud. That alone means everyone that is on Github and Azure, gets to us…
How is VSCode a "gateway drug" into the MS ecosystem? It's good PR, for sure, but it has little to no conceptual/GUI overlap with, say, Windows. FWIW I use it via Linux .deb and integrate with a private GitLab.
Once you're gonna play with azure, GitHub, vsc, you're bit by bit invested in the ecosystem and opening the wallet for that other feature or integration.