unfortunately, it has been decided from both sides (NXP and MS) that only Win 10 will be supported on i.MX8 and Win 11 on i.MX9.
The Windows 11 will work on i.MX8 with most features, but there will not be official support.
From our information there are also some reasons connected to the instruction set of i.MX8 not supporting all advanced Windows features.we could find out the details if the customer is interested.