This is your captain speaking: Please refrain from rude, snarky, insulting or otherwise mean-spirited replies when communicating with me. Agreement with my opinions and views is not required - politeness and civility are. Those unable to follow this simple rule will be blocked and cheerily ignored. Thank you, and have an incredible day.
Check to make sure you are using the ‘recommended’ video driver for your system according to the driver manager. Also, check to make sure that you have installed all available updates through the updates manager.
It sounds like you are using Steam, so I would recommend using the install directly from the official site instead of the flatpak, if that’s what you’ve done.