This strategy is particularly effective because it touches on the product's use. The idea here is to present products that are useful for the use of the product mentioned in the product page.
If we take the example of the home décor shop, we can imagine that the client would be on the product page for a cushion cover. In the dynamic content, we would offer to buy the cushion corresponding to this cover.
The idea behind this strategy is to assume that the purchase of the product sold separately is the prerequisite for the use of the main product page. It’s a possibility that the buyer already has this type of product at home, but if it’s not the case, they’ll only have to click to get it at the same time as the desired product.
This strategy has the advantage of putting you in the position of a facilitator for the buyer. You anticipate their need, and you avoid complications if they hadn't thought of it before or even if they had to look for this second product in your store themselves. On the other hand, make sure to be very clear in the description of your items so that the buyer understands what is included or not in the purchase of an item.