Hello infeeeee, I would like to ask two questions.
Firstly, is the source "Eurostat" suitable for OSM? As far as I understand the licence conditions, the licence notice must be displayed on the start page and on the map. And that's not the case, is it?
If the note is not visible on the map, the licence is not compatible with the ODbL and the data may not be used. Or do you have explicit permission?

Secondly, what added value does this data have for the OpenStreetMap project and wouldn't a uMap be better suited for this?