I'm not sure it matters whether or not it's a fork of VS Code or not.
Zed is a standalone editor written from scratch and it hasn't had the same success as Cursor (yet).
JetBrains IDEs are my absolute favorite. JetBrains controls the entire stack but they haven't had the same results yet. Cursor and Claude Code have some sort of product differentiation here that is hard to argue against.
Incidentally what is the best way to cursify jetbrains at the moment?
They just launched Junie https://www.jetbrains.com/junie/
have you used it? I know that you can also use Windsurf on Jetbrains but I haven't tried those
tried out junie today. It's slow but fairly capable. I still prefer Cursor so far