For the past couple of years I’m using a homemade Dry Cabinet ( a dry box actually) .
It’s no more fancy that a plastic box box with some silica gel and a small hygrometer. It’s been useful so far.
One of this days, in cleaning and store the kit, I question myself if it’s ok to leave the camera body without cover, as I always leave the lenses without covers.
Personally I wouldn’t leave anything without a cover - dust is everywhere and insidious and so I just don’t add to my chores by creating extra cleaning work for myself. Because I live where it isn’t humid (most of the time) I just pile everything into a big closet.