>>112827780Gwen says she was "blown into last week" whatever that means, she's been in the movie universe for longer than any other non-native Spiders.
Also from the script:
>Gwen TUMBLES and CAREENS through a BLUR OF CITY and NIGHT SKY as her MOLECULES SOLIDIFY, TIMELAPSE SHOWING HER TRAVELING “BACK IN TIME”From what I understand, e.g. she could go back to her universe, live a full life, and then get blown into tomorrow of Miles' universe at the end of the movie as an old woman, it could also mean Noir isn't from a universe where everything happened ~70 years later, but that their universes are parallel and he got thrown into the future.