RCT-informed interventions focused on the poorest will not increase demand for factory farmed meat - only broad based economic growth will do this. So one solution is to focus on micro interventions targeted at the extreme poor.
Another solution is to support the alternative proteins sector in LMICs, which could enable some degree of “leapfrogging” factory farmed meat and reduce carbon emissions.
In terms of changes in status and what people are doing:
I don’t think the Global Health and Animal Welfare cause areas have changed too much, but probably get a smaller proportion of attention.
Unrelated to this post, but FYI I think some of the downvotes you’ve received on other posts are because generic productivity advice at least usually isn’t a category of post which this forum is intended for. (Also, most EAs are the types of people who are probably familiar with most e genetic productivity tips already).
Exceptions may be if it is a long list, or something that has been extremely novel or life-changing for you.
Your productivity tips may be better off being posted as Shortform instead of as Posts.
"Thinking in terms of group rather than individual agency makes transition from capitalism to socialism appear more tractable."
I disagree. There is a long history of large, organised, and well-funded groups failing to engineer transitions to socialism within individual countries, let alone a global transition to socialism.
Is there reason to believe that Nigeria's population size is more likely to be exaggerated than other LMICs? (Since I imagine the incentives to exaggerate, and weak safeguards against this, exist in many other contexts too)