“to dwarf” means “to make look small by comparison”. So they’re saying the new scope will make the BG3 scope look small.

Outer Wilds is not at all nihilistic but it definitely deals with some of the topics you’ve mentioned, so it might not be a good experience for you.

I absolutely adore the game but it can definitely trigger people. I hope you manage to reach a better head space one day so you can play it!