Game automatically sets screen brightness to 100%

Nightside-Rush  Does it help to play in windowed fullscreen mode rather than standard fullscreen?  The option is with the other graphics settings.  If it doesn't help, try windowed mode.

Please also let me know whether you have any apps installed that are supposed to optimize your gaming experience, or anything along those lines.  If you're aware of any such apps, try disabling them in the Task Manager before playing.  They'd likely be in the background processes list.

If this doesn't help, please provide a dxdiag.  Click Windows key-R, enter dxdiag in the run box, wait for the scan to finish, click "Save all information," and save the file to your desktop.  From there, you can attach it to a reply using the paper clip (Attachment) icon included with the other formatting buttons.

puzzlezaddictSwitching the game to windowed mode helps (but it makes the game window smaller and with the bottom and top bar visible of course which bugs me a lot ngl), windowed fullscreen does not however. I did have NVIDIA installed but uninstalled it to see if that would fix it, and it did not. 

Attached is the dxgiag file.

Nightside-Rush  Try updating your laptop's Nvidia graphics driver, which is on the old side.  Go here:

https://www.nvidia.com/en-us/drivers/

Select GeForce, GTX 16 series (notebooks), GTX 1650, Windows 11, and download the Game Ready Driver.  Run the installer as an admin: right-click the download and select "Run as administrator."  Choose the Custom (not Express) install method, check the box to perform a clean install, and when asked what else you want to install, deselect GeForce Experience.  If you want to use it later, that's fine, but please test without it for now.

Restart your computer after installing and before trying to play, and please test both fullscreen and windowed fullscreen modes.  You may need to restart the game after changing modes to see the effects.

Hi, sorry for the late reply!

Updated my graphics driver as you said. No change on fullscreen mode, no change on windowed mode, and as for windowed fullscreen... well it forced the game to minimize and I wasn't able to bring the game back up to confirm the change because every time I did the game just forcefully minimized again lol. It should also be noted that my game is a lot slower and clunkier now than before I updated NVIDA for whatever reason. 

Also I currently have laptop mode on, if that means anything that might help?

Nightside-Rush  You shouldn't need to play with laptop mode on.  Despite its name, it's really for low-end systems, mostly those that don't meet the game's minimum requirements.

You could try updating the Intel graphics driver, which is quite old.  While Sims 4 would be using the Nvidia GPU, the rendering pipeline still passes through the integrated graphics chip on its way to the laptop screen, so it's possible this is the issue.  Here's the newest driver, dated December 19:

https://www.intel.com/content/www/us/en/products/sku/191045/intel-core-i79750h-processor-12m-cache-up-to-4-50-ghz/downloads.html

Same deal as before: run as admin, restart afterwards.

If that doesn't help, feel free to post a new dxdiag so I can look for reasons the game might be running worse now than before.