Logging datapoints into influx is pretty straightforward. For example, logging every time your app is started, adding a tag for the platform, the region, logging datapoints whenever some important settings are toggled, etc.

Once you have this data, set up grafana and build some graphs to query it. Grafana has a graphical query builder, and internally it's essentially a sql-like. There's good tutorials in the influx/grafana docs for all that.