Is the Philippines suffering from Brain Drain?

I recently went down the rabbit hole researching human capital flight, brain drain, and its effect on the future of regions or countries for an essay I was writing. Now I can’t help but wonder if this is a significant part of the issue affecting the Philippines.

What would be required to bring about real change in the Philippines? Corruption, poverty, unchecked pollution, bureaucratic incompetence, and apathy seems to be out of control.