Yeah, nothing important. Just your banking apps, personal documents, photos, government apps, emails, all the services linked to your phone via mobile number, personal chats, work chats, 2fa codes, some other not important stuff. But at least it doesn’t have your games. Unless you play games on your phone, then you are fucked.

you need an active online account and the key will be saved online

Is there a legit reason for this? Why can’t they just encrypt the data with the password used to access the online account?