Knowing the exception type is not the same as knowing why the request failed.
Rollbar shows you the stack trace, the occurrence count, and the session replay for a browser error. What it cannot show is whether that error was caused by a timed-out third-party API call, an overloaded database connection pool, or a memory-constrained container. Atatus captures the full distributed trace for every request, so the error and its system-level cause are visible in the same view.