They stopped commercial development a year ago, 6 months after loosing most of their key developers to the open document foundation which was set up to produce copyright free software after oracle decided to be less than fair (from the developers viewpoints). Oracle got invited, which probably added insult to injury - their own fault, threw a hissy fit claiming conflicting interests and booted board members. The biggest backer has to be google.
Openoffice got handed to apache a month later after driving away all the open scource developers and pulling their own. The only reason it still exsits is because IBM were part of the original board and want to release and apache openoffice IBM edition.
They took all the oo code that didn't have oracles new copyright issues, added their fixes and improvements to the point where the code is mostly libre now. You'll be hard pressed to find anyone recommending OO over LO. The release schedule is
here and frankly, you're costing yourself a second install if you use OO now then in a year realize how comparatively inferior it is (certainly will be by then).
Also pretty much all home installer apps just check installed version against net version then download and install them for you. If you can remotely install ms products with no issue can't do the opposite? Could probably write a batch file to run the uninstaller at any rate.
Tbh, buy a fast usb3 pen drive and take a book, you're in for a long day imo
