I like seeing devs embrace native frameworks. Electron apps just do UI so differently that its just a pain to use. For example dragging a file tab out of vs code doesnt create a new window like every other editor.
Anyway, you can do it without dragging which is actually even better. Just do Ctrl+K, O or on a Mac Cmd+K, O.
You can track when this feature is implemented here - https://github.com/microsoft/vscode/issues/8171