What I got was that there would be no Google or Mozilla specific code/libraries, but FOSS libraries for common media formats would be included so that the project can reach a wider audience.

AFAIK They use Skia, the rendering library made by Google so this does not appear true either.

Honestly, I'm not sure that's quite a good takeaway. The article itself was pretty much a bland nothing burger and the articles that were cited were, again, pretty bland. The biggest thing I can find is that they won't be facing off another browser and then it's like, well duh.

It's just one of those things. It just feels like the original dude said one thing and the author interpreted it a completely different way.