UPDATE 9-2-20 Has your Sims 3 game been affected by the recent pixilation issues?

I had tried Reshade last week, but SMAA wrecked my menus and fonts, which is why I didn't use it. I wasn't too sure about the smoothness that resulted in general, as it looked a bit artificial.

Regarding dark screenshots, that's also what the Windows screenshot function produces, so this doesn't surprise me. I usually have to crank up gamma correction to roughly 1.5 for Windows screenshots.