The Xbox One is just 1.31tflops, meanwhile the Switch 2 is 3.07 tflops when docked, and its docked mod,e which runs the game at 1440p 60fps. Secondly the tflops are not 1:1 not even close. The GPU architecture in the Switch 2 is a colossal upgrade over the pitcairn in the One S. Seven Nvidia gpu generations worth of architectural improvements have gone into the Switch 2 compared to the gpu arch in the One, to the point it's still embarrassing relatively comparable RDNA3-based handhelds launched today.
So I'm actually bewildered that you think this is them basically maxing out the hardware effectively in your mind.