I mean situations where data is lost quietly: - a user fills a long form, navigates away, and nothing is saved - a mobile browser suspends a tab and state disappears - a background sync never retries, but no error is reported

From the system’s point of view, everything “worked”. From the user’s point of view, their work is gone.

I’m curious: - Do teams actively try to detect this kind of silent data loss? - Or is it mostly accepted as unavoidable user behavior? - Are there metrics, patterns, or tools you’ve seen work for this?

Looking for real-world experiences, not theory.