I started fairly recently (probably somewhere between nine and seven years ago; time isn’t my strong suit, cut me some slack) on Debian. Now I’m on Arch Linux.
2·10 months ago- I liked fooling with computers and installed it just to see what it was. I went through several distros over the next few years, Mandrake, Suse, Red Hat, compiled Gentoo from scratch, and finally settled on Slackware. It was my only OS for 14-15 years until I started a business in 2016 and needed software that’s only available in Windows. I only use Windows on my PC now because my computer does weird boot stuff that screws up dual boots and I don’t really use the PC that much anyway. I still use Linux on small servers for media and home automation