I’m a long time slackware user, but I joined the party some time in 99 or 00.
I never had the pleasure of installing from floppies, but I did compile my own kernels to speed up boot time. Sometimes they would boot, sometimes they wouldn’t. That was part of the fun.
I’ve been on a retro kick lately. I have a pentium 200 mmx based machine that will eventually run a floppy installed slackware. Or at least it will if I can get it to work.