Dick Tracy wrist radio (and Star Trek communicator) notwithstanding, fiction didn't really broadly embrace ubiquitous communications. I suspect part of the reason is that, as the article notes, a lot of fiction uses control of information flows as an important part of plot construction.

And, as you note, video phones were pretty universally envisioned as landline plus screen. As with many things, video has of course evolved much more organically. Initially primarily on mobile and, of course, it's exploded on notebooks/desktops in the current situation.