I haven't checked, but usually when it's this visible, big tech companies tend to reciprocate so I would be surprised if Google didn't sponsor the PSF in any wa

I haven't checked, but usually when it's this visible, big tech companies tend to reciprocate so I would be surprised if Google didn't sponsor the PSF in any way. That said, once deleting prebuilt binaries doesn't break the package anymore, if Google were to not play fair, PyPI could simply delete them. Users would experience temporary discomfort (but nothing would be irremediably broken), and soon after I'm sure that Google would decide to setup a cache for TF. PyPI would almost certainly not even need to actually do it, the implication that it could be done would probably be enough to align everybody towards what's best for the ecosystem.