Windows Forms was released on 2002 and is still supported by Microsoft. How long do you think Flutter will be supported by Google? For dev technology, Microsoft has a well-deserved reputation for supporting products for a long time.
I am curious about how often this sentiment gets brought up about Go or Kubernetes.
flutter on the other hand is tremendously complex, and has yet to display any major company having bet their future on it.
There may come a time when this applies to Go.
Postgres is not new. It was part of my stack 10 years ago. So many new people have moved to postgres it has become hot.
It's mostly the browser's ecosystem moved away from these for more standard based approaches.
FWIW, I think your criticism is broadly valid, in that it's more of an exception for Microsoft, but much more common for Google. It's not hard to look at the Windows dev ecosystem, and see which parts of it are very stable, and likely to be around long term - because they have already been around for very long indeed.
Silverlight in other hand is a technology no modern web browsers support (in the same camp with gradually deprecated Flash and everything that requires plugins.), and perhaps to Microsoft it's a lot less justifiable to update it beyond security update.
[0] https://softwareengineering.stackexchange.com/questions/1555...