Adobe XD has the rectangle tool, but the rectangle is an element which is a shape itself, destined to be used as a design element.

The feature suggestion is to have a rectangle frame tool, which it's main function is to serve as a wireframing tool, rather tha a design element. The addition is to upgrade the rectangle tool for supporting converting to text.

The wireframing tool should be able to be easily converted to other elements, like a rectangle, image frame or text box:
a) If you set colors, you convert to a rectangle design element (as it currently works)
b) If you drag an image it sets the image in there (as it currently works)
c) If you click with the text tool, it converts to a text box filled with "Lorem ipsum" or place holder text that could be pre-defined by user settings. There could be different settings for text box (title, paragraph, etc.)