vscode can only be customized by an extension. There's a bunch of one off plugins you have to install to get little bits of functionality that you can get by pasting 15 lines of elisp from the emacs wiki. If no one has built that extension yet, you have to learn to build one yourself. You could always create private "personal" extension and keep it local, but that workflow is tedious.
I'm not saying vscode is less extensible or customizable though, I'm saying there's a barrier to ad-hoc personalization that's will keep it from ever being more easily customized (unless you and I have different definitions of what is "easily customized").
Script Commands[1] is an interesting plugin that attempts to address this shortcoming, but I'd like to see something official at some point.
I'm not saying vscode is less extensible or customizable though, I'm saying there's a barrier to ad-hoc personalization that's will keep it from ever being more easily customized (unless you and I have different definitions of what is "easily customized").
Script Commands[1] is an interesting plugin that attempts to address this shortcoming, but I'd like to see something official at some point.
[1] https://marketplace.visualstudio.com/items?itemName=mklouber...