In an updated support page, first spotted by Neowin, Microsoft confirms that installing Windows 11 on unsupported hardware will trigger several consequences, including a watermark on the desktop, notifications in Settings, potential performance issues, and a recommendation to go "back to Windows 10."
I do love it when my computer decides it wants to make my life a living hell because I didn't buy the correct device.
Use Linux wherever you can, if the presence of the Linux desktop increases then it will only get better.
