Open Filza and go to: var/containers/bundle/application/YouTube/YouTube.app/
(Recommended to upload to a file host like MediaFire, Google Drive, or a dedicated IPA repository) download youtube ipa file for ios 1034 best
: This repository contains numerous versions of the official YouTube IPA. For iOS 10.3.4, versions around 10.x.x or the last compatible 12.x.x or 13.x.x builds are typically sought after. see Method 4.
If you still want to download YouTube IPA files for iOS 10.3.4, here are the general steps: download youtube ipa file for ios 1034 best
If you want to manually download this IPA for sideloading on another device, see Method 4.