IMO outer wilds has a strong tone of optimism and hope in the face of existential dread, so I think you’re probably good on that front. And if you’re at all a fan of environmental storytelling and don’t hate physics sims, I think you’ll like it just fine. If you’re super unsure, maybe watch like the first hour (or less if you find your answer early) of someone doing a blind playthrough and see if the manner of storytelling grabs you.