The “embodied energy” of a new tablet like a Steam Deck is estimated at roughly 1 GJ, which is ~275 kWh. Original Xbox draws around 100W, so you’d need to play for more than 2000 hours to get anywhere close to the energy cost of creating a new device.
That's 500 4-hour days of gaming. I imagine a large number of gamers would easily do more than that over a few years of console ownership, so I imagine a large percentage of devices did use more power than the embodied energy.