I actually only started using a computer about 1999, but yes, I did use 3.5 floppies a lot. I even used a utility called something like Mad floppy that would increase the capacity of the 1.44Mb drive to something like 1.99. But never used the 5 1⁄4-inch drives.
3.5 and 5.25 in drives? I’ve got you beat. I used 8-inch floppies, in 1986, on a military communications computer.