Something missing from OTel IMO is a standard way of linking all three together. It seems like an exercise left to the reader, but I feel like there should be standard metadata for showing a relationship between traces, metrics, and logs. Right now each of these functions is on an island (same with the tooling and storage of the data, but that's another rant).
That might be dependent on the library then, there isn't an official OTel Go logging library yet. Seems you have to add the trace ID exemplars manually too
Go is behind several of the languages in OTel right now. Just a consequence of a very difficult implementation and its load-bearing nature as being the language (and library) of choice for CNCF infrastructure. If you use Java or .NET, for example, it's quite fleshed out.
