https://mapfight.xyz/browse/

What does Overture aim to achieve outside the framework of OpenStreetMap?  The official press release and press response offer a few clues.

https://leafletjs.com/2022/09/21/leaflet-1.9.0.html

https://about.maps.earth/

Map making for all!

https://www.readmargins.com/p/say-hello-to-felt

https://gisgeography.com/qgis-arcgis-differences/