And the users care about this why?

Delphi calls from 1998, it was even faster than Electron in development time and cost. Yet almost nobody uses it now.

What killed it? Just one has economic bust and developer generation change perhaps?

(And no, it was not networking, it had good capabilities the too. It wasn't web either.)

Ha! I still use Delphi (amongst other things)! It's great for producing Native Windows apps and is extremely performant (and still works with Win 10). I stuck with Delphi 7 (and thus avoided all the subsequent politics).

As a adjunct, apparently it is still really popular in Germany.