All of these, presumably. The question is how many issue reports the maintainers of those two projects had to wade through to find those relevant twelve. And whether that took more work than they would have had to expend to find those bugs themselves or not.

I wonder how (or if) they handle the tasks of the other R4000. Specifically stuff like ATRAC audio decoding.

How convenient. “You’ve secured our future earnings with your labor, now feel free to go die in a ditch while we reap the rewards.”