I did the steps for copying my games, DLC's and progress from my Xbox one to my Xbox series x which are:

-Turn on the Xbox One you want to transfer data from.

-Press the Xbox button on your controller.

-Navigate to Profile & System.

-Select Settings.

-Select System.

-Select Backup & Transfer.

-Select Allow network transfer.

-Leave the console turned on.

-Turn on your Xbox Series X or S.

-Navigate to the Backup & transfer section seen above.

-You should see your Xbox One listed under Local Consoles.

-Select the games you want to transfer over to your Xbox Series X, S.

-Choose Copy selected.

-Check that the size of the games is not greater that your storage space on the Xbox Series X, S.

-Select Copy.

Now can I turn off my Xbox one during the transfer or can I turn off my Xbox series x and play on my Xbox one or will doing any of those will just fuck up the installation resulting in an instant "installation stopped"