New
#1
If you use the default policies, then there is no need to eject the drive.
See this tutorial for details:
Enable or Disable Disk Write Caching in Windows 10
That is because the default for USB connected drives to have Write Caching disabled. Because of that most times you don't have to eject the drive.
However, you always need to check that you don't have any applications open that haven't updated to the drive. If you just pull the drive and not close any open applications you might lose any unsaved data. I have gotten burned doing that before. To prevent that I don't have applications write to one of these drives directly. I first copy any the files to my computer, modify them, and then copy the files back to the drive.