Oh wow, before this I haven't used old System versions than 6.0.8 or so and it's just super amazing how ready and well thought even the System 1.0 feels usability-wise! Compare to any Windows before Windows 95, which finally caught on enough of the System/Mac OS classic desktop metaphor and made things feel not too clunky.
I've probably said it before and I say it once again: the old Mac OS windowing and spatial Finder feels even today better and more usable than any of the current DEs, macOS included. They managed to cram bunch of windows and widgets in the paltry 512x384 resolution when nowadays we manage to have max 2 windows in one screen or one window per display. (and yes, there are tiling WMs etc but that's a different story...)
On my personal mac there’s a couple of folders that I only ever use in a specific workflow that I have spatial mode flipped on for. It’s nice to know that a folder’s window will always open at a specific on-screen location with a specific size every time… might sound silly but the removed friction is significant.
Mac's are nice. As for Windows the best version IMO was NT 3.5.1 which is a different flavor beast than Mac/Win95 but did it's job exceedingly well, with the one exception of the nested MDI (multiple-document-interface) windows like in Program Manager. Fortunately I rarely opened more than one document per app.
I remember going to a computer store and watching somebody demo System 1.0. But by the time my dad brought home a Mac 128 for the family they were already on System 1.1. So that was my first Mac OS version.
I've probably said it before and I say it once again: the old Mac OS windowing and spatial Finder feels even today better and more usable than any of the current DEs, macOS included. They managed to cram bunch of windows and widgets in the paltry 512x384 resolution when nowadays we manage to have max 2 windows in one screen or one window per display. (and yes, there are tiling WMs etc but that's a different story...)