Personally i bought How Linux Works, 3rd Edition and Linux Pocket Guide.

https://nostarch.com/howlinuxworks3

https://linuxpocketguide.com/

Books that goes from the sytem architecture and from there gives you context for what you are trying to do. They work when your system won’t and you can write in them.

But you should learn in a way that feels good to you. Also, check out the forum for your distro and DE.

I used this one for FNV, and could download mods straight from Nexus to mod organizer.

Worked very easy for me.

MARKSTEAM in the name box would unlock all tech and give a bunch of money in Syndicate on the Amiga.