Basically the only commits to OpenOffice now are things a full project lint would catch. There are some security updates here and there. Last I looked it’s basically one dev fixing spacing.
I remember once reading that one of them (or some other FOSS alternative) was bad for privacy/FOSS, but I can't find that anymore
Not sure if you're thinking of WPS Office (formerly known as Kingsoft Office). It's development is funded by the Chinese government, but although Kingsoft claim that the Linux version is developed by the community, they haven't really published the source code anywhere, so it's considered a high-risk software.
No, it didn't. FreeBSD didn't exist until 1993. 386BSD wasn't until 1992. Linus has said that if a free, unencumbered BSD for PCs existed in 1991, he indeed would not have made Linux.