I have no real evidence for this, but it feels like open science is replacing open access as a more prominent discussion topic and focus of advocacy (in journals, at conferences, online, etc.) Maybe in response to the pandemic?

I've always felt that open science is politically pretty uninteresting, but maybe that's because the term deliberately omits the humanities. Ho hum.

From the perspective of the commons, the idea of open science shaking up the means of scientific production is politically quite interesting, although this framing is rarely the focus of discussion (and often treated badly when it is).

We should commonise open science and make it less about science. Done.

Quite a few replies here saying that open access comes under the umbrella of open science. I'm sure that's true for some people's understandings, but not for mine.

Though I guess the question remains whether policymakers see the push for open access as framed according to open science principles or something different.

fwiw I'm still unconvinced that the European usage of open science (meaning open research) is that much more inclusive. Open research is still primarily shaped by the scientific disciplines even if the term literally includes non-dominant scholarships.