Since Windows is closed source, you have no way of knowing that this isn't happening today.

You can since you can still inspect the traffic. However, it is like finding needle in a haystack since there is quite much of traffic.

Also traffic could be encrypted

Yes, it is TLS encrypted, but you can decrypt that. As far as I know, there isn't other encryption.

Even then you would need do that everytime because it could change at anytime or after updates. There is also nothing stopping them from detecting a MITM and acting differently.

How would you go about decrypting that traffic? I guess some kind of proxy, but I would assume that Windows would use certificate pinning so as to avoid MITM attacks. Another option?

I never saw anybody able to decrypt Windows telemetry traffic.

As I always say, never use Windows without a condom (VM), and only sparingly.

"Introducing Windows 365 Universal Clipboard, ensure all of your random text/password/keys get uploaded to a cloud service, and your clipboard history preserved forever. Search your Windows clipboard history from your PC, phone or even television, anytime"

Doesn't Apple already do some of this with continuity clipboard? I can cmd-c text and files on my Mac and paste on any device signed into the same Apple account - I would assume this data is passing through iCloud.

I don't understand why people still use Windows; especially after the whole Recall debacle.

Because when you are working in SW that is not supported by linux, you don't have option (macOS is not alternative for me), ie Adobe.

Soon it is not safe to boot Windows unless you are prepared to exterminate all the used hardware.

Its so sad, windows used to be a production ready system in the early 2000s.

recall's going to take a screenshot of your entire desktop every 5 seconds and "AI" it so you can search...