For Grafana folks: I got all the way through sign up and sending logs from k8s cluster + setting up logging data source to Loki hosted instance, but could not find a way to actually explore the logs in the hosted grafana instance :)
I figured that you have to click "Explore" next and then see the Logging tab, although it was not easy for me to find, may be highlight it as a first class link on the left panel?