I remember even Ubuntu had their own storage offering, which had they kept it going, I might have subscribed to to this day. Shame, would have been an easy way for Ubuntu to fund itself.
Not just open, but (by default) “paying attention” and not actively trying to “look away” from the phone:
The TrueDepth camera will provide an additional level of security by verifying that you are looking at iPhone before unlocking. Some sunglasses may block attention detection.
If you can get the PIN (shoulder surfing, social engineering) you can reset/change the Apple ID password.
Reportedly then you can add a second face to Face ID with Set Up Alternate Appearance and get access to everything, but I have not seen that confirmed.
Then they crippled the free plan and Apple and MS started pushing their services hard. And Dropbox seemed less ubiquitous after that.