I found this part about PCIe expansions interesting: "For those who rely on PCIe expansion cards for their workflows, Thunderbolt 5 allows users to connect an external expansion chassis with higher bandwidth and lower latency."
(Maybe this is a feature that Apple has supported for a while, but I am unaware) Does this mean they will be officially supporting all PCIe devices like GPUs? Or do they only mean certain PCIe components like SSD expansions and network interfaces?