The C/C++ extension isn't open source though, and that's where the "doesn't work on forks" DRM is implemented. At least the clangd extension is open source and is a viable alternative.
But what happens when you anger the wizards? Some guy gets 4 two liter bottles of Mt Dew, and in a weekend comes up with a better plugin, and open sources it. Look it up on Monday. I just went from VSCode 1.52 to 1.99, and it's not pretty, but... Can someone convince copilot to rat out it's owners and write out a extension that runs cLisp? And all the emacs code runs in VSCode? ( I am saying this so facietously... ).