Hi JB Bailey,
Welcome to Microsoft Community.
Based on the original description, the device seems to be experiencing issues related to the unexpected cursor movement.
In most cases, the ideas shared by other community members in this thread work, such as changing the game mode (fullscreen mode, borderless mode), reinstalling a different version of the driver, or even third-party software.
If they don't work, it could mean that there is something interfering or that there may be an anomaly in the components of the system that are used to handle mouse behavior, such as an unknown corruption.
To minimize other software-level distractions, you may need to configure a relatively clean environment, such as a new profile or clean boot.
Is the situation the same when you observe it in a relatively clean environment (for example, new local account, safe mode, clean boot)?
These steps of "clean boot" might look complicated at first glance. However, to avoid any trouble for you, please follow them in order and step-by-step.
Please be careful not to disable any services that may be related to security credentials or security authentication, such as TPM, Security, Credential.
As for the drivers themselves, sometimes, the latest version of a driver is somehow similar to an "outdated" driver, it may conflict with a particular version of the game/graphics API.
If this is not a problem that has existed since you have been using Windows, you can try performing some tests on the driver, such as clean install of the mouse drivers or graphics drivers, and then installing different version of the driver.
Disclaimer: Microsoft provides no assurances and/or warranties, implied or otherwise, and is not responsible for the information you receive from the third-party linked sites or any support related to technology.
If I misunderstand your situation, feel free to correct me and share the information.
Best Regards,
Kyo.Y - MSFT | Microsoft Community Technical Support