Another question in regards to tiktok (and other android apps) - I got an email saying that a kid I help mentor had given tiktok access to their gmail account (

Another question in regards to tiktok (and other android apps) - I got an email saying that a kid I help mentor had given tiktok access to their gmail account (something like that). Does this mean that a default install asks permission to access and read your gmail, and that would mean they could harvest all of your contacts, and emails sent / recvd, maybe calendar stuff too?