I put Linux Mint on my grandmothers old computer because the hardware was preventing it from upgrading from Windows 7 without massive slowdown. Back when she was using windows (albeit windows 7) she would call me every week with a new issue. Since installing mint she very rarely has issues and whatever issues she does run into can usually be solved very easily over the phone. I would say that Linux is what you make it. If you want to copy and paste commands from sketchy guides, things are going to break. But if you just use it like my grandmother does, browsing the web and writing emails, nothing can really go wrong

Assuming 5 means that I would always have money in my pocket. I would combine 1 and 5 and just be a drifter around the world

This looks nice!

I just use qBittorrents built in categories/subcategory system to sort movies, tvshows. Then Kodi is set up to automaticly scan for new content on startup. Works well, simple.

None! My internet connection is slow so streaming is just not an option. Downloading content beforehand is the only way for me to watch anything over 480p without buffering.