Welcomed to the community, Dim. The community is great at modding so you good in no time. I use to play only my console but then I learn that you mod pretty much everything on pc. So I started playing on and eventually I got hook up.

I recommend using some of this mods.

Nexus Mod Manager: It's a software that let's you download, organize, and quick use of mods. I use to do manually install but I use this and it saves me a lot of trouble. (There another mod organize called Fallout Mod Manager, I haven't use it before. But a lot of people like it, So I suggest using either one) PS: Nexus Mod Manager also support other games such as Skyrim, XCOM, and etc.

Fallout New Vegas 4GB: It basically allow you to load up (I hope I get this correct) the entire memory space for FNV and useful if you have tons of mod.

NVSE (New Vegas Script Extender): It expands the scripting capabilities of Fallout New Vegas. A lot of mods are going to need this to function properly.

Hey welcome! Great to see you have gotten to PC gaming where I think most of the fun stuff happens for sure! and yeah GTA is one of my favorite games too man and yeah fallout is an awesome game for the PC any game like fallout elder scrolls I say are best played on PC so yeah Welcome again and thanks for reading PEACE!