I think you're conflating "old device" with "10 year old browser" here. E.g. for:
> There are plenty of people still using windows 10 with updates turned off or wedged for whatever reason.
It'd be "the pool of people who installed Windows 10 immediately in the launch year but somehow accidentally blocked their browser from updating in the 10 years since, weren't able to fix the issue as the web slowly stopped working, and are stuck using that computer anyways" not "the pool of people still on Windows 10".
The latter won't have many non-intentionally pushed into "10 year old browser status" until 2038 at the earliest.
When will Microsoft stop doing Windows 10 security updates?
I have a 10 year old laptop with 32GB of RAM, GTX 970 6GB and an SSD. For many things it is better than any 16GB work issued laptop (that often come with integrated cards - so you wont be able to run any AI model on them). Although the old ssd is starting to show its age (perhaps a full system reinstall would solve this, other option is to get a new one).
The old laptop does not have UEFI so it could not get the (free for some time) Windows 10 to 11 upgrade.
I am smart enough to install Firefox on it and update it, but the official Windows 10 updates will stop coming soon.
I was effectively kicked out by Microsoft because my device is "old". Even if it is beefy enough to browse the internet and watch youtube.
Note that I bought a new beefy laptop now that I hope to use for the next 5+ years (hopefully more), but who knows if they wont come out with some new idea, like UEFI 2.0 for Windows 12 - that again will mean we need to buy new hardware and new windows.
On an unrelated note I want to turn the old laptop to a linux machine - for fun and learning, but dont have the time for that.