Greetings!
Regardless of what Destiny 2 progress/characters you are using, if you purchase a DLC on Stadia, the Stadia platform account is the only platform you'll be able to play that DLC on.
In a different words, if you have Cross Save enabled and have access to your Steam characters when you play on Stadia, having the DLC on Stadia would let you access that DLC's content using those characters on Stadia.
More information at the [url=https://help.bungie.net/hc/en-us/articles/360049498031-Destiny-2-Cross-Save-Guide]Destiny 2: Cross Save Guide[/url].
English
-
Thank you a lot! Appreciate a quick response:)