I believe it was Ubuntu, likely something like 8.04, but only in a VM. Then a few years later I tried Fedora, DamnSmallLinux, and maybe one or two others. I didn’t install Linux on actual hardware until 2017 when I installed Ubuntu 16.04 and never looked back, though I tried it from a bootable USB a few times years before that. Currently on Ubuntu 22.04 on my desktop, my servers all run Ubuntu or Proxmox (Debian).
I believe it was Ubuntu, likely something like 8.04, but only in a VM. Then a few years later I tried Fedora, DamnSmallLinux, and maybe one or two others. I didn’t install Linux on actual hardware until 2017 when I installed Ubuntu 16.04 and never looked back, though I tried it from a bootable USB a few times years before that. Currently on Ubuntu 22.04 on my desktop, my servers all run Ubuntu or Proxmox (Debian).