If you need to send sensitive information from your iPhone to your desktop you can encrypt the content of a Note using PGPro on your phone and just email the PGP encrypted message to yourself. Then email your keypair to yourself separately. Go to your desktop, check your email, import your key pair into Kleopatra desktop, paste the PGP message text from the email into Kleopatra, decrypt it with your password, and export the decrypted text to a new text file on your desktop.

The great thing about PGPro is that you can also have any sensitive Notes files on your iPhone in PGP message format AND behind a Notes password or faceID. If anyone breaks your Notes password or uses your face to unlock a note, all they’re going to see is a scrambled PGP message locked up with an encryption key.