Xbox Series S/X WIFI logon credentials recovery

Is there any way to view/recover WIFI logon credentials from an XBOX Series S/X? I work at a correctional institution and some staff used their work logon credentials to log inmates to the facility WIFI which allowed inmates to access the internet which is a BIG no, no. I have the Xboxe's on hand and can pull the drive if necessary, any help would be greatly welcomed, thank you

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