Perhaps, but as a counterexample, the SerenityOS people implemented the Delphi approach with Visual Builder but then realized that they preferred working with text, so they replaced it with a declarative DSL and live preview (GML Playground).
I don't know about Visual Builder, but judging from this screenshot[0] it doesn't look like the Delphi approach, but the "Windows resource editor" approach. Yes, both allow you to place things visually, but one works with live instances of serialized objects in an IDE that also understands the edited source code and can modify the code to -e.g.- introduce a new event handler for the OnClick event when you doubleclick the button (even with the cursor placed just right where you can start writing the actual logic of the event handling code), while the other has you draw the UI, assign some IDs and then expects you to do all the plumbing of loading the UI, associating it with code and handlers by hand.
The difference might sound trivial but in practice it is like trying to dismiss editing text with Emacs by experiencing editing text in Notepad.
Here's Andreas Kling briefly demoing both and talking a bit about it: https://www.youtube.com/watch?v=1QYBvTy9QKE&t=519s