Destiny 2 PC Open Beta Now Available For Everyone On Blizzard Battle.net
https://www.gamespot.com/articles/destiny-2-pc-open-beta-now-available-for-everyone-/1100-6452966/
Following a day of exclusive access for those who pre-ordered the game, Destiny 2's PC beta is now available for everyone. This marks the first time the general public will be able to play a Destiny game on computer.
Destiny's PC beta runs until August 31. As with the full PC version, it runs through Battle.net, Blizzard's desktop app. If you don't already have that installed, you can grab it here.