Yeah but an xbox’s gpu can play games too. You don’t need a 3080ti to play any game on the market. Dedicated gpus are almost entirely a luxury upgrade with the power of today’s iGPU’s.
My 3080ti significantly out performs an Xbox. While you can game on a console you can game better on a PC with a dGPU. An iGPU will get the job done, but a dGPU today continues to outperform it and give you a better experience. I can play across 3 2k displays at 165Hz, or step up to native 4k, I can smooth framerates with raytracing on at a non upscaled resolution.
Cool? That level of performance is incredibly niche and not required to play any game. Maximal theoretical performance is one way to play, but not even a majority of PC gamers have that kind of hardware and no one needs it (for gaming at least). The only area where you need power to participate is VR, but stand alone sets run on phone hardware.
The performance differences between an Xbox, a laptop with a good igpu, and a $3k gaming rig doesn’t matter if your top priority is having fun playing a game and not tinkering with specs and hardware.