Earlier quoted context omitted.
But VS Code is not even open source, so even people who only care about open source should be worried about using VS Code.
I feel like comments lately have become full of false statements. VSCode is MIT licensed. But the extensions aren't, which locks you into the Microsoft distribution of VSCode. And that's how they turned an open source product into a monopoly-enhancing tool.
From their github repo:
Visual Studio Code is a distribution of the
Code - OSS repository with Microsoft-specific
customizations released under a traditional
Microsoft product license.
"Visual Studio Code" is to "Code - OSS" what Google Chrome is to Chromium. Microsoft has just been successful at tricking people into thinking that Visual Studio Code is itself open source through misleading marketing on their website and things like naming the github repository for "microsoft/vscode".