Getting the same issue when trying to notarize my first app. I wanted to release it during the weekend but notarization is still stuck in "In Progress" after more than 1 day (31 hours). Definitely not a good experience after being almost forced to pay a 99€ subscription to do just that...
If it matters, my submission ID is e8becdfc-dd66-4e22-8d8c-f0f3c82cd2c8.