Fallout just isn't Fallout without mods. In fact, Bethesda Game Studios RPGs simply aren't the same without mods. In tandem with the creation kit and console commands, you can do anything in Fallout.
Fallout 4 and Fallout 76, though they might appear similar, are actually, in the extremely dense fictional Fallout timeline, very far apart. It's 2102 when the residents of Vault 76 canonically defeat ...
It seems that official mod support is no longer underway for Fallout 76 as Bethesda confirms that it "won't happen" at any point. When Bethesda first revealed its post-apocalyptic MMO at E3 in 2018 ...