Honestly there aren’t a lot of products that were funded this way so I can’t point you to specific resources.
In our case the funding came prepaid with no strings attached. Can’t speak to where in their budgets the funds were allocated from.
I think we should build an ecosystem where companies support open source projects that benefit their companies with great ROI. Unfortunately I don’t know how we get there yet.
There are so many different funding models now for different things (https://humanipo.app/ for example) that there must be a good answer. We should all work together and try harder to find what the best option is.