A few things happening in the PC world that are likely hurting sales:
* Graphics card improvements have largely stagnated. It's been awhile since the latest gen cards, and the new ones just announced (4090, 4080) are now ridiculously expensive.
* Price overall of PCs have gone up. DDR5 is still more expensive. Motherboards are more expensive. So desktop PC component cost has gone up, which naturally must drive higher prices to consumers for marginal gains.
* Laptop manufacturers (besides Apple) are limited to using x86 processors, so their battery life vs. performance still seems to fall behind. Consumers notice that.
* In general, processors have gotten 'good enough', so you care more amount battery life or power consumption, rather than raw compute power. Why upgrade, when the old one works just fine?