Will leaving a game in quick resume end up bugging up later?

I would never recommend leave a game on quick resume if bug free gameplay is your goal. Unfortunately it's not known yet whether it's possible to disable, as the hardware is designed around it. Hit start on the game on the dashboard and go to quit.

It has nothing to do with your save

Hello DaAsAm how are you?
My name is Ezequiel I'm an Independent Consultant. No, using quick resume in a game does not affect future problems. But from your report I believe that there was a bug in the game in your save. I suggest you delete the game and download it again, see if the problem still persists.

To not use quick resume when on standby:

- Press the Xbox button on your controller to open the guide.

- Select System > Settings > Power & startup > Power mode & startup.

- Under Quick resume, toggle the setting to Off.

To remove your game from the quick resume:

- First, click on the Xbox button on your Controller, then “My games & apps”.

- You will locate the list of games that are currently used in the feature Quick Resume.

- Head to the game with the quick resume saved states that you are looking to remove (in this case, Elder Scrolls IV: Oblivion).

- In the highlighted game on your controller hit the Menu button (a small button with the 3 horizontal lines icon) to open up the pop-up menu.

- Now in your pop-up menu, click on “Remove from Quick Resume”.

See if this helps and please let me know.

Hello, begsback. Thanks for reaching out! My name is Lucas, and I'm an Independent Advisor and a Microsoft user just like you. I'll be happy to assist you today.

You can try to remove games from the quick resume feature. To not use quick resume when on standby:

- Press the Xbox button on your controller to open the guide.

- Select System > Settings > Power & startup > Power mode & startup.

- Under Quick resume, toggle the setting to Off.

To remove games from the quick resume:

- First, click on the Xbox button on your Controller, then “My games & apps”.

- You will locate the list of games that are currently used in the feature Quick Resume.

- Head to the game with the quick resume saved states that you are looking to remove.

- In the highlighted game on your controller hit the Menu button (a small button with the 3 horizontal lines icon) to open up the pop-up menu.

- Now in your pop-up menu, click on “Remove from Quick Resume”.

If you want to submit a feedback for the Xbox team to remove the quick resume feature or to have an option to complete turn it off, please use the Feedback Hub app. It is currently the best choice available for us players. Here on the community forum we are only users. We do not work for Xbox.

If you have any question, please let me know.

As an achievement enthusiast, I can assure you it's working just fine

One thing you should never do is allow games to use quick resume, as that is the fastest way to screw up achievements. Disabling quick resume is being explored, but is not known at this time whether or not it can be done