Hold on, don't give cred it to Windows 95. The beveled 3D look was the invention of NeXT. Windows 95 copied everything from them. https://guidebookgallery.org/screenshots/openstep42

Amiga workbench was similar, although cruder, starting in 1985. I think it was just happening all around at that time.

Amiga workbench may have been available in 1985, but I think the bevels were introduced around 1990, in which case they copied NeXTSTEP.

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