This is simply not true. WYSIWYG is no code and has been around since long before people had catchy names for it. Dreamweaver and FrontPage were early examples of it, the benefit they provided was they attempted to let you design by a GUI first, then they'd let you peak the code underneath. Usually, no-code or low-code these days does not come with the source, which makes it especially useless to anyone who wants to do anything meaningful with it.