He has done a US talk show as part of DTS promo (Trevor Noah twice and now Colbert), he'll be in the new season, so I guess it's that. He'll be wanting to keep his face out there to keep making money off merch and it'll be good to not disappear if he wants to race again... plus RB hired him for media stuff. I feel like we'll see a lot more of him in things like this.
He's in a far better position right now to talk about what it's like being and F1 driver than three of the 2023 drivers as there's two rookies and one who has one race under his belt
I noticed aswell in some game he was playing with Lando after he got canned my McLaren where he was trying make Lando guess Vegas, and he said something like "we're racing here next year"...so either he's delusional, has a seat lined up for 2023, or it's just a habit