Microsoft quietly changed how folder backup works in the OneDrive app on Windows 11. Now, the OS enables it by default during the initial setup without asking the user for permission.
If I understand it correctly this behavior happens only for newly deployed computers if you sign in with Microsoft account so there are no unexpected uploads to OneDrive, only downloads of your existing files if you used this feature before.
Although once you start saving files you might not realise files are being saved to also OneDrive. All in all it is a weird and dumb change, that popup where you are prompted if you want to enable known folder move was perfectly fine.
If I understand it correctly this behavior happens only for newly deployed computers if you sign in with Microsoft account so there are no unexpected uploads to OneDrive, only downloads of your existing files if you used this feature before.
Although once you start saving files you might not realise files are being saved to also OneDrive. All in all it is a weird and dumb change, that popup where you are prompted if you want to enable known folder move was perfectly fine.