>Web browsers turned into application engines because it was a path to get useable software on PCs without having to deal with Microsoft. IE6 stayed broken forever for a reason.

Nonsense, lots of software were just local, I've even see MSN clones written in TCL/Tk, and Lazarus still used in some places, and tons of VB6/C# software. Back in the day except for Intranet turds (which in the end causes disasters like Iloveyou.VBS "thanks" to IE/Outlook deeply tied to Windows 9x software ) everyone serious about programming security and correctness flew away from the web model for the good. It was everything about Java (and applets) and later C#. The web had an overgrowth and languages which shouldn't be part of the desktop.