Work-from-home support roles hiring this month (update)

I came across a list of work-from-home openings with paid training. It has been weighing on me all week. The schedules are set in advance, including some weekends. Are there warning signs I should look for?

Thanks for writing this out. I went through something close to it 12 months ago, and it settled down once I kept a simple log of every call and form.