Personally I think that using logs in text format is by far not the best solution when it comes on keeping visibility of the system.
Besides the fact that if you log a lot of things you will reach a point where you will start losing logs because the system will not be able to persist them so fast, you also have a big mess of text logs afterwards that you have navigate through and somehow make sense of them.
I have used metrics and time series databases like InfluxDB before to have a much better outcome when it comes to visibility on system/subsystems and introspection. This also goes perfectly hand-to-hand with how telemetry in elixir works, because I can decide ultimately the shape of output data.
If you are set on just outputting text from your telemetry events to console logs, just make a generic handler that will just log everything, should be no more than 10 lines of code.
