For iOS 10.3.4 (commonly used on legacy devices like the iPhone 5 or iPad 4), official support for the YouTube app has ended, and Google now requires significantly newer versions of iOS to run the standard application. To get YouTube working again, you must either find a compatible IPA file to sideload or use system modifications to bypass "Update Required" prompts. IPA Files for iOS 10.3.4
Also, enterprise developer accounts are for companies, so if the IPA is distributed that way, it might violate Apple's policies. So advising users to be cautious if the IPA is from an unknown source. youtube ipa for ios 1034 link
The link provided points to a YouTube video. While direct IPA downloads from YouTube are rare, this video might: For iOS 10
: This is currently the most reliable way to restore functionality to the old YouTube app. It requires a jailbreak and the installation of a "tweak" to redirect the app's broken connection to a working server. Requirements : Jailbroken device, TubeRepair Tweak So advising users to be cautious if the
(e.g., AppValley, TweakBox)**