You can find historical YouTube IPA versions on community-driven archives. These are often used for sideloading via tools like Sideloadly or Cydia Impactor.
If the App Store method fails, you can sideload an IPA file from a computer: youtube ipa for ios 1034 link
Since the official App Store version now requires , you must use archived files or specialized legacy methods to restore functionality. You can find historical YouTube IPA versions on