Is there a difference between product marketing a full system vs marketing individual products? (in terms of GTM strategy, segmentation, positioning and messaging, etc.)

Many tech companies start with building a solution, which then becomes their primary 'product', and over time they add more features, making their offering more like a system of modules at this point. From a Product Marketing point of view, are there factors that we (Product Marketers) should be aware of when we're marketing that full system (vs marketing individual products)? For example, do we plan for them differently? Should we even get involved in driving the split of that system into individual product offerings instead (so targeting can be better focused)? Thank you!