On the Mac Plus and other Macs in a similar chassis, yes, there wasn't much room to move windows around, but it was still possible. Apple also released several larger Mac displays (around 16 by my count) prior to 1995, including two 21" models (in 1989 and 1991, respectively). Workstation-like window management absolutely happened on Macs in the late 80s and early 90s.
The thing that the earliest Macs lacked was multitasking (outside of desk accessories). It took until Hertzfeld created Switcher before you could run more than one full Mac app at a time, and even that required 512K RAM.
(I remain amazed at how people even today will argue like this trying to avoid talking nice about MS. You're misconstruing the point, seemingly deliberately.)
Sure, on $15k ($30k in 2025 dollars) Mac II's. See also the answer elsewhere about NeXTSTEP being a player in this space.
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. And to repeat yet again, Microsoft Windows 95 landed like a bomb in this community and changed everything. And it happened very fast.
A Radius two page display was just not that expensive. Neither was a Mac II. By 1992, you could buy a Mac IIci for $2900 and a TPD for $900-1100. You couldn't buy it on your allowance but it was reasonably common.
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.
