As much as I agree with the statement that contemporary LLMs certainly differ a lot from what we experience as "thinking" from other human beings, the problem with this line of argument remains that there is no consensus on what exactly manifests "thinking",
The problem with this line of thinking is that you are ignorant of the fact that we CAN say what is not thinking, and we've narrowed down the problem quite a bit.
It is generally agreed that chocolate bars do not think. Rocks do not think. Pocket calculators do not think. We know what thinking is not, even if we can't define it fully.
Without knowing precisely how Explorer is structured, it's conceivable that there may be different dynamically-linked libraries and/or execution points for running the desktop and for the file explorer, in which case just having explorer.exe running in and of itself doesn't mean that new modules have to be loaded if explorer.exe process fires up. The solution could very well be to load the libraries involved in file browsing when the desktop opens.
Just guessing here. There was a time when there was a lot more horsepower required for GUI elements than folder browsing, but this is 2025, and explorer.exe probably uses orders of a magnitude more resources now than it did in 1995, because... well, who knows really. Probably to sell more ads and load up more data to their AI.
That, on modern hardware, they have to preload a fucking file browser so that it pops up faster is just an indication of what a steaming pile of garbage MS is. They had sweet spots with Win2k-WinXP and with Win7, but their incoherent need to be a whole bunch of contradictory things --- with AI! has led what was a rather iffy OS and UI experience to begin with to become a cluster fuck of incoherence.
I do most of my day to day work on MacOS and Gnome, and fortunately the Terminal services version I have to RDP into is Server 2016, but every time I have to work with Windows 11 I'm just stunned by just how awful it looks and how badly it behaves.
: is not an identifier