I first saw this on reddit, but I figured it would be good to make sure that this also stays accessible on another platform
Apache OpenOffice hasn't had a major release since 2014 whereas LibreOffice, its de facto successor, is actively developed and modern.
Unfortunately OpenOffice still has name recognition which leads casual users to still download it as a replacement to commercial office suites, despite being very out of date. It's kind of become a bit of an embarrassment to open source software and really should be discontinued, but a small handful of developers insist on keeping it on life support.
See this open letter https://blog.documentfoundation.org/blog/2020/10/12/open-letter-to-apache-openoffice/