Interesting. Citing sources (heh) would have helped here. I found more sources, and it looks like my understanding is wrong and yours is right:

https://opensource.com/article/17/11/open-source-or-free-sof...

https://www.gnu.org/philosophy/open-source-misses-the-point....

Thanks for the explanation. I'll have to find a more accurate term for what I was trying to articulate, once I've dug into things more.