I'd also argue that VS Code is not open source - at least not the version that 98% of people run. If you download VS Code from almost anywhere (and are not using Codium) then you are subject to the licence terms at https://code.visualstudio.com/license which says you may not:
- reverse engineer, decompile or disassemble the software, or otherwise attempt to derive the source code for the software except and solely to the extent required by third party licensing terms governing use of certain open source components that may be included in the software;
- remove, minimize, block or modify any notices of Microsoft or its suppliers in the software;
- use the software in any way that is against the law;
- share, publish, rent or lease the software, or provide the software as a stand-alone offering for others to use.
- reverse engineer, decompile or disassemble the software, or otherwise attempt to derive the source code for the software except and solely to the extent required by third party licensing terms governing use of certain open source components that may be included in the software;
- remove, minimize, block or modify any notices of Microsoft or its suppliers in the software;
- use the software in any way that is against the law;
- share, publish, rent or lease the software, or provide the software as a stand-alone offering for others to use.