For 99% of users, the is the perfect solution. It's safe, works perfectly, and requires no technical tinkering. For the remaining 1% who enjoy technical challenges, the methods involving AppStore Troller or a jailbreak are your only other options, but they come with significant complexity and risk.

There is only one semi-legitimate way to get an old YouTube IPA onto your legacy device, and it does not involve clicking a random link.

I can provide specific troubleshooting steps based on your current setup. Share public link

All YouTube IPAs (Archive.org) – This collection includes versions like 10.33.11688 , which are historically compatible with 32-bit iOS 10 devices.

Youtube App Not Working On Old iOS (How To Update on iPhone & iPad)