The browser is powerful enough now that one could replicate this if one wanted to. I don’t think it’s the pinnacle of software development, but it had some advantages.
The difference is that winforms basically had one way to do everything which expedited development because it skipped all of the infinite number of stupid small decisions and libraries that must be cobbled together in a typical SPA.
Win32 could do it all. And in windows there was often a different way to handle things like video across each major OS version. Yet still, I feel it was simpler! Crazy!!