Thank you, Redrobes! My sense is that folks are moving on to some programs like Scribus or Canva, but that the learning curve is steep. I have access to MS Publisher through my job, so I'm currently leaning that way, but I want to get a good look at what the publishing ecosystem will support. The standard for crowdfunding seems to be an entry-level PDF and then higher pledge tiers for soft- or hardcover volumes, so there might be some radical rethinking in line for the whole industry if Adobe presses forward with its invasive, proprietary sensibilities.