@ACduousDCduous When I say right-click the desktop, I mean right-click your computer screen but not any particular icon. You'll see a number of options, one of which should be the Nvidia Control Panel. The reason this is important (and I should have said so, but it was late and I was in a hurry, sorry) is in part that Sims 4 often "sees" the Intel iGPU and choose DX9 mode. But beyond that, there have been some crashing issues with newer Intel graphics chips and DX9 mode, and it's important to make sure that the system is using the Nvidia GPU for Sims 4 all the time, not switching back and forth.
Having said that, your dxdiag doesn't list the type of crashes indicative of this particular problem. So we'll need to look elsewhere.
First, try playing with your computer offline. You can sign into the EA App and put it in offline mode, then disable wifi and/or disconnect the ethernet cable before pressing Play.
If that doesn't help, please try playing in a clean boot:
https://support.microsoft.com/en-us/topic/how-to-perform-a-clean-boot-in-windows-da2f9573-6eec-00ad-2f8a-a97a1807f3dd
The one service to leave enabled is the EABackgroundService, which the EA App needs in order to run. Disable the rest as described.
When you reboot your computer, go through the Task Manager's background processes list shutting down any service that doesn't absolutely need to be running, for example anything from MSI Afterburner to RGB software might still be enabled. If you accidentally kill a critical process and it doesn't restart on its own, just reboot your computer again.
Don't open anything other than Sims 4 and the EA App while testing, not even a browser window.
If that fixes the issues, you can selective reenable services until you find the culprit, and then you'll know what to uninstall or at least leave disabled for the time being.