Are the DMDB snippets really both a cappella? The one does not sound like that somehow. and which snippet is leaked to first?
Yes, both snippets are from that a cappella demo. However, one of them is a recording of the song being played on PC (you can hear the mouse clicks and sounds very low quality - https://picosong.com/Bnay/), while the other snippet is from the song itself (you can hear the vocals more clear - https://picosong.com/DdDT/)