@pluralistic fyi for people in the EU, there's a citizens initiative who want to make these vaccines and treatments a global public good and freely accessible to everyone.
If enough people from EU sign it (1.000.000) with enough spread (each country has a threshold, the threshold of at least 7 coutries need to be reached), the EU commission must meet with the people making the initiative and formulate and answer to it.
It's maybe not much, but it's something people can do.
Signing at:
https://eci.ec.europa.eu/015/public/#/screen/homeWebsite of the initiative:
https://noprofitonpandemic.eu/