Heads up, just because you downloaded the 80GB pre-load of Destiny 2 doesn't necessarily mean you'll be able to play it right away.

Apparently the unpacking process (decrypting) can take many many hours depending on your machine. I'm hearing HDD is much slower than SSD so if you installed on a spinning drive (like I did), you'll want to try and launch the game ASAP to start the unpacking process.

Mine started at 10:30am and right now (noon) it says I have 5 hours left of unpacking.