Reminds me of
https://en.m.wikipedia.org/wiki/DESQview and https://en.m.wikipedia.org/wiki/IBM_TopView
It'd be interesting to try this concept again on the wildly different computers we have now compared to 40 years ago.
4k monitors, high speed networks, dozens of cores, things are significantly different - might open some wildly exciting and new possibilities
and Borland Turbovision
I was just about to same the same thing! I remember briefly running DESQview on a 386SX, before installing Linux...
Got hold of a free copy of this as a student, on underpowered PCs at college and it was a superpower.
... and visual basic 1.0 for DOS
Also reminds me of https://en.wikipedia.org/wiki/AlphaWindows
Although I’ve never succeeded in locating a copy of the spec, any implementations, even a screenshot… would be great if any of them turned up some day