How well does jellyfin work on a rpi? How many simultaneous 1080p users with AVC\ACC media can it do? Active cooling?

The simple mans solution.

I have several dvd drives. Pretty sure none of them works. They have been sitting unused too long. At least one has a permanently deformed rubber band, that drives the spinny thing. They dry out with time and sitting still.

I prefer solid state stuff.

Most people would rather go to the store and get a new computer, than go to a webpage and download an iso. They can figure it out. They are just lazy and have little motivation to try it. They also want what they already know, with as little change as possible.

Why does your dad have an opinion on what your sister use?

You copy some text from a webpage and put it in your email or word processor, it copies the formating too and everything looks wonky. If you paste the clipboard content in a text editor, like notepad and copy the text from there, you strip the formating.

That is what the post is refering to.

rsync is indeed fiddly. Consider SFTP in your GUI of choice. I mount the folder I need in my file browser and grab the files I need. No terminal needed and I can put the folders as favorites in the side bar.