Thats exactly what dark paterns are: asking „do you want to backup your files?“, instead of transparently asking if you want to „MOVE your files to OneDrive“. Then not providing clear „Yes“ and „No“ buttons. But showing a convenient „Continue“ (or similar) and a scary worded „dont backup“ (or similar). And there are so many times where I deliberately uninstalled Onedrive, Outlook(new) and others, only to find them back in the menu an hour later. Also hate these f**ing questions, where you have the big blue „Yes“ button and only a „ask me later“ to deny. Or you have to find some blue words in the explaining text to click on, like when starting MS-Office on a local account the first time: Big „Login everywhere with MS-Account“ button, and „only MS-Apps“ just in the fine print (not even a way to say „only use MS-Account in Office“)

I just reinstalled Windows this week, saying no to everything, and I swear they did not ask me about OneDrive like before. My folders were set up as OneDrive with no opt out.