Actually when I saw on how to patch lib files manually i bypassed almost all major pairip apps but some app has their own library modules i don't know how to find these lib files
An APK is just a ZIP archive renamed.
You can use any zip extractor to unpack it.
Once unpacked, look for a LIB folder (doesn't always exist).
Inside the lib folder are the device architecture subfolders.
Commonly v7 for 32 bit and v8 for 64 bit.
Within those folders will be .so (shared objects) similar to DLL files for PC.
Unlike DLL's .SO are standard compiled and encrypted making extracting content near impossible.
The most common PairIP file is name libpairipcore.so
So long as the manifest or DEX code do not use this library, or, only use this library, PairIP protection is easy to remove.
It is when other .SO libraries or say, global metadata, call on libpairipcore.so that it becomes an issue as we can't easily gain access to those files content.
This is where PairIP needs to be bypassed.