I still have them to ... yes, 3.11 was called Windows for Workgroups ... 7 floppies the last floppy never seem to be used unless you had an obscure printer ... mine still work.
I also have DOS 5, on 5.25 & DOS 6.2
(on three 1.44 floppies)
Windows 95 was 25 floppies
you could not copy disk one unless you knew how, it was a 1.20 formatted disk
(I think) to help prevent piracy.
Workgroup = network