Slackware.. my first Linux district. In 1995. Classic shell font. I miss those days, but modern Linux is amazing.
For me, it was ~ 2 - 3 years ago, I had just bought myself a new laptop.
I knew what Linux was from some experience with a raspberry pi, and wanted to try it on my main machine, so I installed Fedora as a dual boot.
I've only booted Windows on that(this) machine twice, and no longer have it installed.
Edit: The installer itself was graphical and mouse clicks, but X11 did not play well with optimus graphics at the time, so I found myself offline using man pages and tmux very quickly. Daily drove TUI only for a couple weeks before I sat down and fixed X. Hopefully this counts.