Collectible Card Game Headquarters

New magic player, been playing on Forge to get stuff down before venturing out into the real world. Is there a way to just download all available decks from a source within forge instead of having the app connect each time? I've done the edit deck option for a couple to keep them, but that's a lot of steps to get all the decks.

Also, any things I should remember that aren't obvious when I play IRL?