If you can swing it, keep the old PC parts around and put Linux on the old stuff and build up confidence there. I used synergy to move my mouse between windows and Linux and slowly got to the point I felt good enough to jump all in.

Yep! And it’s per account. Both of my Linux machines are in this months data!

I logged into mine a month or 2 ago and realized I was still in tutorial island. I had totally forgotten where I left my character! It was a fantastic experience to go through the F2P quests and leveling again.