As jononor already said they are usually logged to a public location. And even if they are not they are logged in plain text on each client usually. In Slack t

As jononor already said they are usually logged to a public location. And even if they are not they are logged in plain text on each client usually. In Slack the logs are also not searchable if you above a certain threshold (10k lines or something) if you don’t pay. Slack is prohibitively expensive if you have a lot of users and not really made for such a non-company use case.