I have 3 different computers I work off of. How do I Link them to one LibreOffice so I don’t have to retype everything 3 times? I did not find an answer on your page.
That’s called collaborative workflow. There are many possibilities to solve that. The basic tool is File>Open Remote File. It assumes you set up some sort of server on one or several machines. The detailed answer depends of course on your OS (which is it?).
Your choice is between FTP, SSH or HTTP(S). Another solution is to use rsync so that you can ensure you always pick up the latest version and don’t erase a newer one. rsync will make a local copy of the reference document (in fact, you synchronise directories) and you’ll use usual File>Open.
As you can see, LO can’t be used stand alone but needs auxiliary tools to achieve your goal. Most important, you must define a procedure to work with and never deviate from it, otherwise you end up in a mess.
Simpler but maybe less reliable: have thought of putting your document(s) on a USB stick?