The way I remember it, if you tried to read a floppy from the very early 90s, or from the 80s, you'd probably have no trouble at all, even many years later. You can probably still read floppies from the 80s without issue.

However, if tried to read a floppy from the late 90s, or 2000s, even when the floppy was new, good luck! The quality of floppy disks and drives took a steep nose-dive sometime in the 90s, so even brand-new ones failed.