From the sources I have seen, that 10% was a projection for 2024, with goals to significantly reduce it in 2025 and 2026 onward. It also includes "banned" goods, which are not necessarily fraudulent nor illegal. I have not seen any data on whether or not Meta has achieved their goals of reducing fraud and banned goods advertising.

Considering the absolute deluge of politicians and celebrities allegedly promoting financial scams on norwegian Facebook my hunch is absolutely not.