After internship searching for a while, there are quite a few internships that are "volunteer work," most are upfront about this, but others don't make it so clear. It is a little annoying to say the least.
Interesting. I almost never find any (for actual software roles), just checked Indeed again and still don't see any for here (SF). If I remove the word software they start appearing and are typically for nonprofits, arts, advocacy groups, etc and the maximum extent of tech is writing a blog article or sending emails.