[rathel]

Apple does use OSM in some countries like Ukraine IIRC. They are free to do so. https://wiki.osmfoundation.org/wiki/Licence/Community_Guidel...

Although their attribution is leaning on the minimalist side.

[rmc]

Turn by turn navigation in Apple Maps in Denmark is OSM based. (If I remember the talk from the Apple engineer at State of the Map 2018)