News Apple rumored to kick off M5 chip production using TSMC performance-enhanced 3nm node

I am not really expecting substantial performance improvement. The performance improvement moving from say M3 to M4 is significant likely due to the adoption of the ARMv9 architecture.
 
“Apple finished updating its lineup of products with its M4 series processors in October,”

Umm, what? The MacBook Air is still on the M3 generation and the Mac Studio and Mac Pro are both still on the M2 generation. Although there is doubt the desktops will get M4 processors, there is no doubt that the MBAir will get them… no doubt /= veracity in any way, of course
 
The growth of performance per 1W of consumption will continue to fall. We are getting closer to the silicon dead end. The point of buying new models (and with an ever-increasing price, growing faster than the official inflation), i.e. demand, will fall almost along the same curve (adjusted for the continuing growth of the planet's population), unless companies find a way to horizontally improve the quality of gadgets so that buying new models makes sense in 3 years. Or they don't come up with even more sophisticated schemes for artificial aging of gadgets, forcing the masses to buy new models. Like the forced transfer to W11, which essentially no one needs. Remember the promise of M$ - "W10 will be the last" ...

Apple has made great strides over the last 15 years by betting on TSMC, but now even TSMC can't deliver the same performance gains per watt that it once did.