Sharing your styles for QGIS is now getting easier with the new QGIS style sharing plattform.
The technical aspects is presented in more detail by Tim Sutton on the Kartoza YouTube channel:    • Showcasing the new QGIS Style sharing...  


You can find the styles at https://plugins.qgis.org/styles
The QGIS.org web page will get an update in the not too distant future so the links is valid at the time of recording this video.