"Potential SSD Detection Bug in Windows 11 24H2 Following Update KB5063878 (August 12, 2025)": https://learn.microsoft.com/en-us/answers/questions/5536733/... (learn.microsoft.com/en-us/answers/questions/5536733/potential-ssd-detection-bug-in-windows-11-24h2-fol)

This seems more like a hardware or controller failure. There's no way Windows could cause all sectors to return identical contents even if it wanted to without hours of writes.