This, it looks like the most generic x-windows client ever.
Microsoft's timeline:
CTL3D.DLL: Introduced circa 1991–1992, primarily for Windows 3.1 applications (not the OS itself). It added 3D effects to dialog boxes and controls but was optional for developers.
Windows 95: Introduced native 3D controls (e.g., recessed buttons, drop shadows) as the system-wide default in 1995, eliminating the need for CTL3D.DLL
Was this LLM generated?
Windows 95's success was in part because Microsoft put in the effort to test and write good standardised UI controls and configurations. Throwing a bunch of UI elements on a heap with pretty high-res (at the time) graphics makes for a good freeze frame in a movie but a terrible UI.
MS copied from everyone, like Apple did before them and Unix display managers did after them, but their copy was far from cheap.
3D chiseled widgets: Beveled buttons and controls with subtle shading created a dimensional, tactile appearance.
Full-color icons: Large, detailed icons (uncommon in late 1980s GUIs) enhanced visual clarity.
Consistent typography: System-wide use of Display PostScript enabled professional-quality fonts and anti-aliasing.
Transparency and compositing: Advanced graphics handling allowed overlapping windows and semi-transparent elements.
Current discussions still praise NeXTSTEP's design as better looking and more usable than Windows 11 and macOS.
Widely? You seem like the only one carrying the water for nextstep. I'm sure they had some advances but overall it's a very ugly UI.