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.
I got a Karmic Koala (ubuntu 09.10) CD from my friend kn my high school days, I install it on my Pentium 4 PC then freaked out because there are no codec and I can’t install it because I have no Internet at all, lol. Going back to windows until I have Laptop on my second year of uni. I still needs to use my uni’s wifi to install any apps, but it is workable and I use Linux almost exclusively since then. (sometimes dual boot-ing if there are Lecture that needs me to use windows.)