Sadly, no. I’ve tried with generic spaces and hard “non-breaking” spaces (I think they are called). Neither work to retain the empty lines. I suppose I could try typing dummy words and coloring them white, but at that point, I’d rather just take everything into Affinity Publisher.
(To be clear: as mentioned above, things work fine on a single line, including spaces. It’s just when you introduce carriage returns that things get weird.)