Why does any of this actually matter? Why were you shaken? You weren’t committing fraud. You did real work. Now you’re in the US with a family and a career. Happy Father’s Day.
You know that feeling when you work on a feature for weeks or months and then something comes along and the feature is no longer needed or the project is cancelled? It's a pretty frustrating experience -- was it all for naught? Maybe it's useful to vent about it a bit.
However, I was quite surprised a few weeks ago, on a client project, to find in one of their repos a chunk of example code that I’d worked on 22 years ago.
[0] Being real, a lot of the ephemerality actually stems from questionable commercial decisions, working on the wrong thing, etc. But some at least is a legitimate result of evolving markets and needs.