Is it really so far fetched to imagine that most people would most likely be "fine" with renting their full computing solutions from companies like Microsoft and Amazon?
no, esp not if it's either or (like for some FB is internet access). But fully locked down devices and settings will get a liability quickly too that people can't ignore.
The very idea of simply owning a screen, keyboard, and mouse, and using Windows remotely via a subscription
We are already used to this from way before in the late 1990s, w corporate thin clients. afaict that has peaked some time ago already, and offices now tend to have hardware again (laptops usually)?
global thin client market still growing, but overall very small: 1.5 billion USD in 2022, 2 billion by 2030.