Very interesting, having used Grafana in the backend. I had plans for exploring the space for non-intrusive privacy-friendly observability libraries for the Frontend. Are there some other notable tools?
Maybe you can check out Sentry
Does this really need Grafana Cloud to work?
It should work with OpenSource. You should be able to use the Grafana Agent to write to your Loki and Tempo backends on-prem as well.