Early GEM allowed arbitrary window sizing and positioning at least within the file manager, and Apple thus sued them, because they felt they had exclusive rights to ideas that they stole from Xerox
Also, the Amiga had the window management you refer to in its earliest versions, in 1984. Amigas cost a hell of a lot less than $15,000, even packed to the brim with expansions. I grew up with the Amiga, so your assertion that "No one was doing it in the consumer space, no consumer knew about that stuff, Linux consumers on their 14" 800x600 monitors sure hadn't see it." is anecdotally false.
I didn't flame at all in my comment. I just recounted the history, as it's known to have happened.
Windows 95 didn't bring that much to the table over Windows 3.1, in terms of basic window management. The taskbar is really about it.
GEM died when DRI lost their stalwart status, as well as when Apple sued them. Amiga died when Commodore refused to innovate in the hardware space, but the engineers always had top-notch innovative OS ideas.
Also, the Amiga had the window management you refer to in its earliest versions, in 1984. Amigas cost a hell of a lot less than $15,000, even packed to the brim with expansions. I grew up with the Amiga, so your assertion that "No one was doing it in the consumer space, no consumer knew about that stuff, Linux consumers on their 14" 800x600 monitors sure hadn't see it." is anecdotally false.