@planet4 if you want to see Grafana’s charts without login\password, you should turn on anonymous access.
Edit /etc/grafana/grafana.ini
[auth.anonymous]
enabled = true
org_name = FeedParakeet
org_role = Viewer
Then you should go to Grafana’s GUI - Profile settings and set the “Name” field equal to the “org_name” value.
Your graphs will be visible to anyone. But it wil be impossible to change anything without loging in.