The share is higher than you would expect because they include all apple devices in them because the apple soc is capable of running ai. Of course who's buying a MacBook it's not doing it because "it's an AI PC". Should have included all gaming PCs then...
The report says Lenovo ai PC shipments went up 228% last quarter. Uh... They put on sale their copilot+ devices on the last week of Q2, then of course at the end of Q3 you have such high percentage. They could have said "10000000000000000000000% yoy increase"
A PC with a CPU that integrates an NPU, I think. That's mostly laptops, and often not intentional from the consumer point of view as chip vendors just throw in NPUs to make money off the AI hype.
If Macs were still PCs, every Mac would be an AI computer. Reuters still considers Macs to be PCs, so this number includes all Apple laptops and desktops as well.