I'm at the same place as you. This is the only game from the whole launch lineup i was really interested in. I tried Destiny 2 and i quickly remembered why i stopped playing over 1 1/2 year ago. Stadia actually works, but the controller is collecting dust and i have absolutely no reason to recommend this service to anyone at this point. The lack of information from beginning to end has been mind blowing.
I don't believe there has ever been a gaming platform with this much lack of info on games after launch. Even Wii U did superior when compared to this.
And now i fear Borderlands 3 won't show up before Christmas. I don't have time at all to play over Christmas with the whole family being together, I start to regret i saved this game to play it on Stadia instead of on my PS4 
Should really be checking with 2K/Gearbox as they are the publisher and developer for Borderlands 3. But then again the BL3 website still has a reference to "Borderlands 3 will be available on Google Stadia November 2019" in the small print at the very bottom of their web pages, so that kinda implies that it's been delayed once it could be delayed again..? 
