https://www.bleepingcomputer.com/news/microsoft/microsoft-fixes-windows-10-bug-causing-excessive-ssd-defragging/

Microsoft has fixed a bug in the Windows 10 version 2004 defragger that caused SSD drives to be defragmented too often.

In June 2020, after the Windows 10 May 2020 Update was released, we reported that the operating system's automatic maintenance feature contained numerous bugs.