Can I put a 2GB in my PC?

So I have this pc - https://www.amazon.com/Dell-Optiplex-Generation-Computer-Professional/dp/B0C4Z55279?th=1

I was wondering if I could put a 2GB graphics card in it and it... #1 not have issues with the PSU and... #2 fit in the PC or be compatible with my PC.

I am fairly new with PC spec info and how things work so if you could also give some recommendations for 2GB graphics cards that would be highly appreciated.

I am aiming to run games from around 2010 - 2020 or 2015 - 2020 with fairly low graphics settings and games such as GTA 5, Witcher, Assassins creed, Hitman, and any open world games etc.

I was looking at getting either a Nvidia T400 2GB - https://www.nvidia.com/content/dam/en-zz/Solutions/design-visualization/productspage/quadro/quadro-desktop/proviz-print-nvidia-T400-datasheet-us-nvidia-1670004-r5-web.pdf

or getting an Nvidia GT 1030 - https://www.nvidia.com/en-us/geforce/graphics-cards/gt-1030/specifications/

if you have any recommendations for cheaper or better fit one then please let me know, thanks.