Or run
Linux with
Libreoffice. No keys, no activation, no malware, no scams. 100% legal.
Spend the money you would have wasted in licenses by getting better parts for your PC, never worry about unwanted updates or subscription expiration.
Free and Open Source Software is reliable and the most used in the world. That Web page you are browsing?, is not running on a windows server, the vast majority run Linux or BSD, and for a good reason.
Did you know that you can install Linux and Libreoffice legally in as many PCs as you want, for any purposes you want, without spending any money if you want? Better yet, you can hand copies away so that others use them too. You don't have to worry about others not having Libreoffice, just give it to them.
Its about freedom.