Just checked the link listed https://www.meta.com/experiences/846896660051683/And was able to claim the game now.

I'm in the same boat. Got my quest 3 today and all setup, but no email or notification to redeem the game. When I got my quest 2 last year and beat saber free I got an email like 5 mins after setup. I'm going to give it a few days and then probably h...