AMD CPUs and GPUs are great.

Nvidia wants you to buy a new gpu every year, so they are trying to force this AI (ML) upscaling/frame gen horseshit into games so they can sell you a new "improved" version with a new GPU generation.

For mid range GPUs maybe. But CPUs and high end GPUs aboslutely had an improvement.

Ryzen 9000 series and Intels Core 200 series didn't really up performance too much, but they did reduce power consumption by a good bit. But the 9800x3d CPU is an absolute beast. https://gamersnexus.net/cpus/rip-intel-amd-ryzen-7-9800x3d-cpu-review-benchmarks-vs-7800x3d-285k-14900k-more

http://gamersnexus.net/gpus/nvidia-geforce-rtx-5080-founders-edition-review-benchmarks-vs-5090-7900-xtx-4080-more

Maybe if you look at price per fps, otherwise they did have improvements.
AMD's 9000 series specifically targets better RT performance (edit: that's on top of overall architecture improvements), plus they get some new software (FSR4, RIS2), same with NV software, but compared to AMD their midrange is even more disappointing. But if you're only worried about value, 7800x3d (or 7600 on the budget side) is still king, and buying a (tested) used GPU is still a better option.
We still haven't seen all of Intel's generational range, so far they look p cool