I wish modern operating systems looked like Windows 95, I think this was the one time Microsoft got their user experience right, except for the things that were forced on them by backward compatibility concerns, e.g. "in-band" filename extensions that were awkwardly hidden by later versions of Windows.
https://github.com/B00merang-Project/Windows-95 has a theme for GTK+4 with classic widgets, they work quite well w/ the new "responsive" mobile-friendly apps. Unfortunately you'll need to replace your GTK+ user config outright to use it because the new version has no support for themes.
