Do you guys have a easy to use tutorial to run a Full node on Tails? I know people who have tried before and they had several issues with the restrictive default firewall rules. 
I don't suggest doing that on Tails as you can have some issues during this process because you would need to use SSD or HDD drive for that, so better use regular Debian Linux OS for that purpose. Use Tails only only as a live operating system to run from your USB drive, this is not demanding high speed of drive like in case with BTC nodes.
If you want to have light desktop environment for Linux than use XFCE or even lighter LXQt.