Pernicious manipulation
This is what they do with climate data all the time - they shift the color scale so that it looks like temperatures are very high even when the temperatures are virtually unchanged compared to the same time period in the past.
In this case, they did it with the groundwater levels in France. While the levels really did drop, the color shift makes it look much more dramatic.
Using the 2024 coloring scheme, all the yellow would be green and the blue would look a lot brighter.