>>712374091PC needs a 4090 to start punching up to 50+ FPS gaming at 4k, which itself is only really viable once you use DLSS/FSR for higher 1% lows. It's basically necessary if you care about raytracing (lol, lmao) as well.
Obviously console output at 4k is all upscaled, but most people don't give a shit about whether the circuits produce a native 4k image. They care that the images they get are clear at 1440p or 4k, that there are enough images to constitute a stable framerate, and that the framerate is delivered at an even pace.
Switch 2 users, afaik, mostly care about the handheld experience. There is currently no PC handheld that deliver the Switch 2 software experience even with TOTK (60 fps @ 1080), much less while weighing more, draining battery faster, and dealing with hiccups like shader compilation framedrops.