MatPat

Funnily enough, the canon choice for both of these endings is established not by the next game, but by its own game guide.

There's an afterword section written by an in-game NPC called Moira.

During the game, she gives you a side quest to help her complete the survival guide, the completed version of which can then be found in Fallout 4.

So, not only is that optional side quest canon, it also shows us that she's a trusted documentarian of the Fallout world, so this afterword should be taken seriously.

In it,

she states that the Wanderer exploded a mountain.

So I guess they did blow up the Enclave again.

Finally, you can recruit a character called MacReady as a companion in Fallout 4.

That means the lone Wanderer didn't go crazy and kill all of those obnoxious cretins in Little Lamplight.

And speaking of, let's talk about Fallout 4.

Hey,

Hey, whoa, whoa, whoa, whoa, whoa.

We will get to New Vegas.

I know it's the GOAT.

But honestly, while Fallout 4 is a little more complicated than the previous three, it doesn't hold a candle to New Vegas, especially with season two of the show being all about it.

So I wanted to save the best for last.

Sound good?

Okay, fine.

I suppose that makes sense.

Thanks for your understanding, buddy.