Spatial skills seem to be separate from visualization. Elsewhere in the thread a commenter said they can’t visualize, but do very well with rotating objects in the mind and fitting shapes together.

As to your question, people indeed can imagine smells, tastes, and sounds. Smells are supposedly one of the strongest factors in evoking memories — although my own olfaction was always questionable and got worse with age, but some strong smells still elicit recall from ages ago, e.g. the mechanical smell of subway around here when I haven’t been in it for fifteen years.

Another commenter said they can imagine the taste of a dish from its ingredients, which I can do only approximately.

However, I’m pretty good with imagining sound, particularly music — while knowing jackshit about music theory. This actually brings some annoyance, as I’m trying lately to finally do some music production, and it never sounds quite like I want it to.