@Yellow-the-Blob Please try forcing the game to launch in windowed mode. Go into Documents > Electronic Arts > The Sims 4, open Options.ini, search for fullscreen , and set it to 0 (zero).
If that doesn't help, please uninstall and reinstall the EA App, which your dxdiag says has crashed a few times (along with a number of Sims 4 errors). Use Revo Uninstaller, the free version is fine, to uninstall, and restart your computer before reinstalling.
Thank you for your help!
It works if I change the fullscreen size to 0, if I try to size it back up in the game, then it proceeds to break again.
I uninstalled and reinstalled the ea app, it had the same problem.
I guess I have to play my game with a minimized screen, but that's fine! It's not ideal, but better than nothing.
Thank you again so much!
@Yellow-the-Blob You should be able to play in "windowed fullscreen" (i.e. Borderless) mode rather than standard windowed. And if you're not already using an in-game resolution of 2560x1440, which is the resolution of your laptop screen, please try that too. Windowed mode will have a slightly lower resolution but still very close; you should be able to choose 1440p in fullscreen and borderless modes.
