Is it good technically though? Or is it just really popular because it’s so well maintained and extensible?

I think the main reason vscode is so popular is, because there aren’t really good native alternatives (e.g. I wouldn’t compare e.g. vim because it’s kind of a different target audience).

So maybe something like zed or so will take the reign of this class of editors, but we’ll see, I just hope it’s not yet another electron or DOM based editor, DOM is bad enough in the web already…