Josh is full-time employed by the Foundation, without another job.
It does seem pretty odd that they presented their expenses being just two million short of the PSF's expenses as useful for "putting things in perspective," given how much larger in scope the PSF is, especially after the cuts the Foundation made last year, however.
I think the others have covered it pretty well, but just so you hear it from the source:
> if over 60% of the annual “expenses” of your nonprofit goes to “management” covering the salaries of four people who have other full time jobs,
That is an incorrect reading of the situation. The four full-timers who work for the Foundation do not have other jobs, so we are covering 100% of their salary. And that line item on the budget _also_ covers a bunch of part-timers, such as the SREs who keep the Matrix.org homeserver running.
If you have any other questions or concerns, I'm more than happy to speak to them :)