@rpcm
I also have similar question. I thought E2EE means that the files can only be decrypted upon entering the user assigned password?
In my case , I have all files downloaded via Obsidian Sync to a new vault on my iPad. I can use other app to open and view the content of each individual mark down file. However, I cannot remember giving the user assigned password to the iCloud Keychain, hence I wonder how the encryption is meant to work