Broad targeting, paired with strong creative and clean conversion signals, commonly outperforms narrow interest stacking on Meta and Google in the GCC today, since automated systems typically find qualified audiences faster than manually layered interests once they have enough conversion data to learn from. Interest targeting still has a role early, before real signal volume exists.
The tradeoff is control — broad targeting depends heavily on feeding the algorithm accurate, well-tagged conversion events, so weak tracking will produce weak broad results. Accounts with clean data tend to do well going broad; accounts with messy tracking should fix that first.