It's for sure less extensible than EMACs/Vim (you probably can write extensions but I've never done it, but it's not as easy as popping in some elips or whateve

It's for sure less extensible than EMACs/Vim (you probably can write extensions but I've never done it, but it's not as easy as popping in some elips or whatever). That said, you can configure a lot of things you care about, e.g. you can do remappings, including complex remappings from "sequence of keys" to "sequence of keys or existing commands". And since there are lots of pre-defined commands etc, there's a lot you can do. (BTW I mean this espeically in vim mode for vscode, I don't have experience with using vscode without it).