Completely false, about Windows. There are (debunked) rumors that the next version of Windows will be online only, but it isn't now. And I don't see a trace of promotion in Windows 11. I forget how I disabled that 2 years ago when I installed it, but it wasn't difficult.

Ubuntu, on the other hand, tries to sell me on Ubuntu Pro and Expanded Security Maintenance for Applications every time I log in. But I haven't looked into how to disable it so I won't make a false claim that it's something "you can't remove."