I think there’s something missed here. The prevailing thinking is that by “waiving” patent rights; we would somehow make the vaccines cheaper and more available to other countries.
This is debatable, perhaps even doubtful.
To manufacture these vaccines, even with the intellectual property of the patent holders, will require huge investments in plant / equipment / and storage facilities.
It’s not that they would be cheaper, or even more available, but that the nationalized pharmaceutical manufacturers of other countries could cash in on the distribution of vaccines.