I know this is such a long shot in the dark, but I had it around the A1 gate by the Tim Hortons and the Jugo Juice. I would have been there at around noon today. IF you find it or happen to know someone who did, please send me a PM! Worried sick about this, please let me know!
Was it stolen or did you forget it?
For future purposes, I’d recommend keeping a GPS tag in your steam deck carry case. If you’re using the original case you could potentially stick it the charger bit with something so it’s less likely to be noticed /removed if someone finds or steals your SD.