Deleting all versions of a OneDrive file

I'm using OneDrive to delete all versions of a Teams chat file and I want to delete all versions, not just the current version.

Questions:

1) Do I need to just call DeleteAsync for the DriveItem entity or do I have to call DeleteAsync each for each Version entity?

2) Does the drive item Versions property include old versions that have been archived because they've exceeded the archiving threshold?