Maybe they just don't know any better

Apache OpenOffice??

Surely you meant LibreOffice. OpenOffice has basically been dead for years, with no significant work going on.

To expand further on your point, here are the releases for Apache Open Office (OO). We are at 4.1.6. the page for 4.1 release was last updated in 2014. It’s been mainly small bug fixes since then.

www.openoffice.org/development/releases/

LibreOffice (LO) and Open Office were essentially the same application at OO 4.0 vs LO 4.1. LO had 3 major releases by 2023 before it went from 7 to 24. With the annual releases it is me difficult to gauge progress in the same way. But we are already at 26.2.

www.libreoffice.org/…/libreoffice-timeline/

Apache OpenOffice - Release Notes