Seems like you’ve run some bad distros. Every problem you’ve described I’ve seen solutions for, and GUI solutions too, not just command line. Linux certainly was as you’ve described, but there are loads of user friendly distros that never require you to open a terminal window, ever, for anything.
An investigation from a neutral third party is a good thing, but in this case LTT hired the third party investigator so the investigators obviously have an incentive to find LTT innocent of all charges since LTT is paying them through Linus Media Group (LMG). It’s better than nothing, but it’s like when there’s an internal affairs investigation into police misconduct… by the police… Nobody believes it and for good reason.