Can you consider adding the comment for peer entries to log lines? It’s a lot easier for this human to find “Customer #4” than it is “asd8f76908asd7gfhlk23b…”.
Using the existing logging definition structure, possibly by adding a topic of “wireguard+comment” or “wireguardc”. Of course, it might be helpful for others to simply add yet another option of “with comment” for all topics.