Am I correct that Snow White has a 1080p Blu-ray sourced from the same remaster as the 4k UHD?
Yes, I just received my 4k copy today and the Blu-ray that comes with it has the same remaster.
Also there is no info about a mono audio track on the box but there is an English track that
is DD 2.0 that might be it. I’m not expert enough to listen to it and be sure. Why a 4K disc
would have a lossy track instead of lossless is another question.