@ManyFrontiersman Thanks for the dxdiag, which shows a couple of errors related to the Nvidia graphics driver; the Sims 4 errors could be related to the driver as well. So the best place to start is by clean-uninstalling and reinstalling the driver. Here's how:
https://crinrict.com/blog/2019/02/clean-re-install-of-graphics-drivers-with-display-driver-uninstaller-ddu.html
When reinstalling the driver, please use the one Acer offers for your laptop rather than the newest version. You can always update later, but with a new-ish laptop, it's typically best to try the manufacturer-provided driver first. You can find that driver here, labeled "VGA Driver (RTX 3050 Ti)":
https://www.acer.com/us-en/support/product-support/AN515-57/downloads?suggest=Nitro%205%20%3E%20AN515-57;1
Please also make sure Sims 4 is using your 3050 ti rather than the integrated Intel chip. Launch the game once after reinstalling the driver, then go into Documents > Electronic Arts > The Sims 4 and open Config.log. You'll see the graphics card the game is using listed about 30 lines down. Let me know what you find.
For the Gallery being unable to connect, please see this thread:
https://answers.ea.com/t5/Game-and-Mod-CC-Issues/READ-FIRST-Gallery-Connection-Troubleshooting-Status-ONLINE/m-p/9514109