Snapchat is commonly one of the strongest paid channels in Saudi Arabia specifically — the platform has unusually high penetration and engagement there compared with most other markets, which makes it a serious consideration rather than a niche add-on for Saudi-focused campaigns, particularly for younger and family-oriented audiences.
That strength is fairly Saudi-specific and doesn't generalize evenly across the rest of the GCC, so budget allocation should be tested market by market rather than assumed. Snapchat often complements Meta well for reach and frequency in Saudi rather than replacing it outright.