I’ll go first, I took my mom’s college textbooks which came with discs for a couple distros and failed to install RHEL before managing to get Fedora Core 4 working. The first desktop environment I used was KDE and despite trying out a few others over the years I always come back to plasma. Due to being like 12, I wanted to run my games on it, and man wine was not nearly as easy to use (or as good) as it is nowadays. So I switched back to windows until around 2015 or so when I spent the next few years trying to replace windows as much as I could. Once valve released proton, I switched fully and have t looked back, unless my still there windows partition tries to take over my computer when I restart it at least.
In 1999 / 2000 I started using Mandrake because I missed the days of using a terminal instead of a GUI. That got me into setting a web and mail server up and running things from home once I had stable internet. I have always had an on and off relationship with Linux and the other *nix. Currently I have a few servers running around the house for various things all running Ubuntu but besides upkeep and making changes I don’t touch them much until my ADHD kicks in and I want to learn something new then I burn out for awhile and repeat the cycle. I am probably the outlier here that uses windows daily and Linux secondary these days.