StackOverflow isn't representative. It was always skewed towards .NET world (and thus VS). I assume this is the case because the founders were prominent .NET personalities.

There's no representative community though

What this doesn't show is people using vscode/vs with neovim driver or vim key bindings. The vim "backend" percentage is going to be significant.

I don't think you can add them, respondents could select multiple editors. I am guessing 34% is the upper limit if no Neovim users use Vim and vice versa, which is hard to believe.

This feels like it's skewed by the question: "Which development environments did you use". I know that vim is an IDE, but I still think of it as a text editor. I would probably answer "Zed" to that question (not even on the list!) and "vim" to a "Which text editor" question, although I use a third, graphical editor (CotEditor) for a lot of stuff too. I never use a full-blown 'ide' like visual studio.

I wonder why is Spacemacs listed as a separate entry?

You could probably lump PyCharm and IntelliJ together; different language modes of effectively the same editor.

I'm pleasantly surprised Notepad++ is so high up.