I believe most new Android phones have full encryption enabled by default, so even if I just download some PDF weather report from the internet, it will sit encrypted on my phone's SSD.
Now, suppose my phone breaks and loses power, such that just the SSD remains good and I eventually get all of the SSD's raw bits copied into a file on my computer.
Then, in principle, with a lot of research into Android's encryption methods and knowledge of my broken phone's password, I should be able to unencrypt those copied bits and ultimately see that weather report as proof. (By design, without the password, the bits can never be decrypted. By the way, let me group fingerprint, facial recognition, and PIN authentication measures within the term "password" for simplicity here.)
But, in practice, I highly doubt anyone would recover a phone's data like that. So, what should I do if I have some valuable million-dollar encrypted file on a broken phone? To be specific, assume the phone is a Google Pixel 6 Pro. Notice that this is different from the FBI's problem because I have the password.
I am also curious, do any phone makers provide some proactive means to anticipate recovery like this (e.g., "Download Your Decryption Key" in Android Settings, though this would not normally be recommended since this key is ideally never saved anywhere and ideally just reassembled from the password at each use)?