Does the Google Pixel 9 support Qi2?
No, the Google Pixel 9 doesn't have magnets inside or support a 15W peak using a Qi2 charger. It does charge at up to 12W via Qi, and will work perfectly up to that peak with any of today's great Qi2 chargers (or 15W with the Pixel Stand), but you'll need to add a MagSafe case or adhesive magnetic ring to it in order to use magnetic accessories.