Soldato
Well, Bethesda do have a bad habit of making CPU limited games. Mainly because the engine threads badly - and that's not just a problem with the rendering engine but also their tendency to do all NPC AI tasks on one main thread.
Not just that, but yes I agree on that to, but I can tell you at 1440p 8GB VRAM will not be enough.
Even Fallout 4 (how many years ago now) was maxing 8GB, admittedly with mods, Fallout 76 maxes 8GB on my 3070 with no mods.
I am thinking my 3070 will struggle a bit, particularly with the texture settings up high.
If playing at 1440p anyway, I think you will need as a very minimum 12GB+ GPU.