Only the 1st Year content is going F2P; The Destiny 2 included with Stadia has all the content.

It sounds like the base game will be free, but this offer also includes the Year 2 and Year 3 DLC, which probably will not.

If Destiny 2 is F2P, will they have stuff you need to buy? And will Stadia Founders get that for free? I don't know, do you?