Are they referring to this?

The Netherlands have the 2nd highest standard of living in the world:

https://worldpopulationreview.com/country-rankings/standard-of-living-by-country

Or maybe this?

Previously, poverty was assessed predominantly through income levels alone, disregarding household savings or capital. This led to inflated poverty estimates, as it counted individuals with low monthly incomes yet substantial assets as living below the poverty line.

The revised method presents a more nuanced view by considering savings and the ability to maintain basic needs for a year. Now, those who may earn less but possess enough savings to sustain themselves through the year are no longer classified as impoverished. In practical terms, the newly defined poverty line sits at approximately €1,510 income per month for a single person and €2,535 for a family with two young children. This single poverty line replaces the prior multi-dimensional approaches, allowing for a standardized assessment of poverty across demographics and income brackets.

https://www.hollandtimes.nl/2024-edition-8-november/less-poverty-in-the-netherlands-generally-amsterdam-is-statistically-poorest/