How to find LIneage-Specific Proteins

[Calvin2077]

Hello everyone,

I am very new to bioinformatics and thus I was wondering if someone could please help me in that I want to discover Lineage-Specific proteins in a genus of archaea using Orthofinder. Therefore, could someone please help me either with what file from the Orthofinder output to use or if there are any scripts (python/bash) to collect this data.

In other words, I want to find the proteins that are only found within a specific genus of archaea; therefore, could someone please help me find this information please and thank you.