I suspect Ivan is referring to ODM as the FOSS option here. I’m less sure about the commercial software - possibly Pix4D. https://ivangayton.net/2020/07/03/use-of-proprietary-software-in-the-aid-sector-perpetuates-racial-injustice Anybody know Ivan?
The upshot is that using proprietary software in international development can create a vicious cycle where public and charitable funds are funneled off to commercial software companies, accelerating their feature development. This entrenches the monopoly of outside experts and expensive tools. Using and supporting FOSS software improves local expertise, provides local employment, and helps local communities maintain independence.