I know dashboards are super trendy, but I’d love to hear from those who are not using them. I personally use FreshRSS to keep track of as much as possible, along with Uptime Kuma and plain old bookmarks. Perhaps there is a better overview solution, but I also love filtering what I see to not feel overwhelmed. or spammed, by information.
https://charity.wtf/2021/08/09/notes-on-the-perfidy-of-dashboards/
Graphs and stuff might be useful for doing capacity planning or observing some trends, but most likely you don’t need either.
If you want to know when something is down (and you might not need to know), set up alerts. (And do it well, you should only receive “actionable” alerts. And after setting alerts, you should work on reducing how many actionable things you have to do.)
(I did set up Nagios to send graphs to Clickhouse, plotted by Grafana. But mostly because I wanted to learn a few things and… I was curious about network latencies and wanted to plan storage a bit long term. But I could live perfectly without those.)