ArcGIS Desktop 10.6 is as it is a proprietary professional software. While you may find unofficial links from third-party sites, these often carry security risks like malware and are not authorized by Esri.
For about $100/year, you get a 1-year license for personal, non-commercial projects. While not free, it's highly affordable for learning and hobbyist use. download arcgis 106 free
Use the Story Builder to drag in maps, images, videos, and narrative text. ArcGIS Desktop 10
If you need ArcGIS functionality without paying: non-commercial projects. While not free