I do sometimes get the feeling of déjà vu, I also sometimes rediscover things I completely forgot about, which kinda "unlocks" my nostalgia. It's such a strange feeling, especially the first one. It feels reassuring, but at the same time it feels like you're discovering something new.
I feel like the beginning song really captures the moment of déjà vu or nostalgia. Overall it's a nice composition, I love the melody and the bass as well. Good work! Nice album art too!