Is the soundtrack available for download
Sort of! All songs were licensed from Soundstripe, which lets you listen online for free. Here's the playlist: https://app.soundstripe.com/private_playlists/music/318541
Some songs may sound slightly different because I removed some stems (vocals mostly) but overall it's pretty much the same.
As for downloading, I believe you have to subscribe to their service to be able to do that.