As a C# developer on Linux, I wish this was more true than it is. Working on a multi project dotnet solution in VSCode is still far behind Visual Studio / Jetbrains Rider.
Its also worth pointing out that the more you add to VSCode, the slower it becomes. If you add the toolkits to make it compete with Jetbrains products, it isn't nearly the same lightweight editor anymore.
Reasons are usually just newest kernel/mesa/etc. Most of the time the difference is very small, and often inconsequential. However, every now and again there is a major development that might make it worth it (IE: The graphics pipeline that all but made dxvk-async obsolete)