Solved
Game is Unusable after June Update
No idea what the issue is😔 Initially, I was getting blue-screen once loading into a lot. Couldnt see anything at all. Tweaked my Ultra settings down to High Changed Full Screen to Windowed Pla...
Update: this ended up not being a Sims save/CC/mod issue.
The DxDiag output you suggested showed that my Alienware was somehow running through Microsoft Basic Display Adapter instead of my actual NVIDIA RTX 2070 SUPER, which explains a few different things that have happened, actually.
I did a clean NVIDIA driver reinstall, restarted, repaired The Sims 4 through the EA App, and the game is loading properly again now. Thank you so much for being willing to help, I really appreciate it.
For anyone who happens to come across this in the future, make sure you've got the Nvidia app installed to manage your driver updates. Updating resolved it for me.
