An IPA (iOS App Store Package) library is a collection of files that contain the compiled app, resources, and metadata. It's essentially the package that gets installed on an iOS device.
You're looking for a review of the IPA library for Telegram, specifically the patched version. ipa library telegram patched
That being said, here's a general review of the IPA library and the concept of patching: An IPA (iOS App Store Package) library is