Man, that was awesome. I rarely watch fan-made trailers and the like, let alone more than once, but I had to make an exception for this.
Hmm, well I like them as they are, since the large resolution lets us see things in much better detail, but it is really hard on data. I actually maxed out my monthly data last month because of all the GIFs I was seeing here on ERA, haha. Not that it was your fault or anyone else's. I was the one browsing despite all the GIFs. The size seems fairly reasonable, though, given the resolution and length of the GIF. Your most recent one here anyway, didn't check to see the file sizes of the others before that.
I don't recall him doing so, and it makes sense for him not to since he didn't see the state of Jötunheim. What's curious, though, is how he found out Faye's name. Once you return to Tyr's Temple (Brok's Shop, to be specific), he makes a comment on Faye's identity, referring to her as "Laufey the Just." Neither Kratos nor Atreus tells him her name. Although... I suppose Brok and Sindri could have mentioned it. That's not unlikely at all given that they know her and created the Leviathan for her.