I did try to read the sidebar resources on https://www.reddit.com/r/DataHoarder/. They're pretty overwhelming, and seem aimed at people who come in knowing all the terminology already. Is there somewhere you suggest newbies start to learn all this stuff in the first place other than those sidebar resources, or should I just suck it up and truck through the sidebar?

EDIT: At the very least, my goal is to have a 3-2-1 backup of important family photos/videos and documents, as well as my own personal documents that I deem important. I will be adding files to this system at least every 3 months that I would like incorporated into the backup. I would like to validate that everything copied over and that the files are the same when I do that, and that nothing has gotten corrupted. I want to back things up from both a Mac and a Windows (which will become a Linux soon, but I want to back up my files on the Windows machine before I try to switch to Linux in case I bungle it), if that has any impact. I do have a plan for this already, so I suppose what I really want is learning resources that don't expect me to be a computer expert with 100TB of stuff already hoarded.