Silica gel is used to absorb the moisture generated whilst shipping items, the issue is due to moving between areas of different ambient moisture content so the differences in a static location would not normally require any silica gel to prevent issues with moisture.

It could be an issue with irregularly used laptops which is kept in a laptop bag, but only if they were used in site work environments, or transported as aircraft hold baggage, as the general private living areas, are often air conditioned or at least fairly stable in moisture content