Clicking [i] in the bottom right corner reveals this is indeed based on OSM data. Kind of stupid design, as the [i] button is so big that a small always visibl

Clicking [i] in the bottom right corner reveals this is indeed based on OSM data. Kind of stupid design, as the [i] button is so big that a small always visible attribution could have fit better (just like on osm.org). This is seemingly one of default options in OpenLayers (my guess based on how often I see this type of attribution). I wonder why people choose OL anyway. Sites using it in my experience have on average jankier UX than those based on Leaflet.