I don’t know what could drive PC sales in this age.
Old machines from the last 10 years are still capable of all normal daily tasks, even development tasks. This has the 95% covered through existing or cheap second hand machines.
The only new use-case is local AI, which for most people is simply out of price range right now with the current GPU and RAM prices. There’s some people who’ll want this, but they are a minority. Not enough to drive sales at scale.
So whatever remains as a segment is business - which in these cost-aware times are mostly doing like the other 95% and only buy new machines if needed to cover new hires.