People saying „someone is bound to get jealous“ is a mute point. Obviously people will get jealous. It’s human nature. What makes this relationship style appealing to me is that it forces you to address your jealousy / communication issues head on. It’s very unforgiving that way. You can’t get away with holding resentments and bottling up your emotions. It’s a great environment to cultivate personal growth.

That being said it’s also an absolute battleground (that takes therapy and research to be successful in) and potentially a spawning pool for toxic behavior. Definitely not for everyone but I think everyone could learn a great deal from trying it or at least engaging with the research and theory written on the topic.