I've been working remotely for most of my career and I intend to keep doing so, but if a "decent" virtual whiteboard can do that, I've yet to see it. FigJam, Miro, etc. all seem to be technically fine but unable to come up with flows that are as clearly obvious for collaboration as "two people standing there at a whiteboard". I can use all these tools quite effectively (I've got a LucidChart tab open right now) for solo use or semi-independently with close colleagues on the same board, but attempting to add other people creates chaos and a mess over the conference bridge because the affordances are so different from what people want out of rapid, high-bandwidth low-worrying-about-the-color-of-the-rectangle idea swapping.
Though I disagree with them and with you--I downvoted that post for its writer being a jerk, not for being subjectively wrong. "If you think virtual whiteboards maybe aren't very good you should give somebody else your remote job" is "man, shut up" territory.