Switch is well above a 360 and no Orin has less bandwidth than XBO overall. You are not taking into account XBO Esram which put XBO's total bandwidth at 109GB. The Jetson Orin is 102. XBO is a ballpark range for a mobile chip that Nintendo will go with. Of course it will have new features but overall powe range is XBO.
The ESRAM in the Xbox One is 32MB. You can't take the ESRAM bandwidth and add it to the total RAM bandwidth and call it a day. That's literally like saying the 360's RAM bandwidth was over 250GB/s (it wasn't). While ESRAM can help with bandwidth limitations, it's more often used for framebuffers.