What's the problem for people who just use VSCode, exactly? The software still does what people want for free, which is what 99% of VS Code users use the software for anyway. People who care about open source-ness have their own extensions to replace their proprietary C++ tooling, or they can use an open source alternative like Eclipse.
I remember when basic features that come for free in VS Code cost thousands of dollars per developer, back when "update" meant "buy the new version (again)". I swear, people forgot how good they have it.
The change that made the Microsoft addon incompatible with VS Code forks happened four years ago.