Xbox One to Xbox Series X - Game Transfer or Update?

Not really...

Xbox Series X games / upgrades / updates has to be installed onto the Series X internal or expansion card SSD,

You can have Xbox One games on your external hard drive that will get an Series X upgrade but the games will need to be transferred to the Series X and then the Series X upgrade will need to be downloaded onto the Series X SSD,

As an example...

I have Marvel Avengers on my external hard drive that will get the Series X upgrade and I will transfer the game over to the Series X SSD ready to download and update the game to the Series X version when available.

Depends .

If it is a disk game and you are trying to transfer to an xbox one s digital or the xbox series s then no you are waisting your time

Those are digital only consoles and disks installs require the bluesy or dvd to validate the install

Digitally purchased game's can be transfered to save time yes

If it's to an xbox one x or regular xbox one s or xbox series x disk and digital will work with them

I tried that and still my Career mode progress won't transfer over.

The system is treating them as two different games as they are listed as separated games in my Achievements list and none of the achievements I got in the Xbox One version have unlocked in the Series X version either.

I'll see if transferring over the Xbox One version of the game to my Series X fixes the issue.

I cant find anything online that is this specific. I just wanted to ask if the owners account library will be fully transferable from xbox one to the xbox series x. Honestly this will be a deciding factor on wether i buy it or build a lynux gaming
pc.

Your entire account will be transferred from Xbox One to Xbox Series X when you sign in on Xbox Series X, you just may have to download and install the games again that you have, you wont need to buy the game again as you already own them.

Bare in mind, if you want to go for a gaming PC and are looking to match or get the same spec's and performance as the Xbox Series X or better, you'd be looking at a price of around £2000 give or take.

Hello Cincisquirtle,my name is Marvina, I will be happy to help you.

The short answer is yes, you need to transfer the licenses from your Xbox 360 to your Xbox Series X in order to access downloaded content (DLC) for your Xbox 360 games.

To transfer licenses, follow these steps:

Sign in to your Microsoft account on your Xbox Series X.

Go to "Settings" > "System" > "Licenses".
Select "Transfer licenses to this console."
Follow the instructions on the screen.

This process will transfer all your Xbox 360 game licenses to your Xbox Series X.

Once you've transferred your licenses, you'll be able to access DLC for your Xbox 360 games on your Xbox Series X.

If you are having trouble transferring licenses, you can try the following:

Make sure you are connected to the Internet.
Sign out and sign back in to your Microsoft account on your Xbox Series X.

Restart your Xbox Series X.

Source: https://support.xbox.com/help/hardware-network/getting-started-set-up/move-from-xbox-360-to-xbox-one

These are basic solutions to these problems, but they can lead to a solution, remember that this is a public forum where we are players like you who want to help, good luck and happy day.

Sincerely,
Vanessa.