However, tile loading seems a bit funky. Network errors appear.
Yeah I’ve replied on Github, Jolla broke the osm maps plugin with SFOS 4: Using QML map + osm not working?
I’ve let the option available because I was hoping it would be fixed soon enough 
I’ve tried to use the mapbox-gl-qml plugin yesterday to prepare the future but I wasn’t able to display anything on the map in a timely manner, copy-pasting the code from the example didn’t work as-is 