Discovery matters more than in most verticals
A lot of home decor demand does not exist as a search yet. Demand Gen and YouTube create it; Search harvests it afterwards. Running Search alone caps you at the demand that already existed.
The image is the ad
Lifestyle imagery wins on discovery surfaces, clean product shots win in Shopping. The feed should carry the right one for the placement, not whichever the supplier sent.
Freight eats the margin quietly
Shipping a bulky item can cost more than the click that sold it. Break-even has to be calculated on landed cost or you will scale confidently into a loss.
More: Google Ads for home decor.