Asking that services require you to encrypt your backup file by default to protect against local malware or malicious access is certainly not "The people behind passkeys do not like...allowing you to export your passkeys".

keepassxreboot/keepassxc#10407

  [Passkeys] should never be exported in clear text
  Overview
  Passkeys should never be allowed to be exported in clear text.
  [...]

maybe read the whole issue?