All these answers are great, but kind of swerve around the overarching query.
I understand the concepts of hit reg, lag compensation, server tick rate, etc.
I guess what I'm really getting at, is that I haven't PERSONALLY seen any issues in Apex with this. I can't honestly say I've ever noticed my shots missing their mark when I was sure they've hit, not really ever been killed around a corner when I should have been covered, etc. This leads me to wonder if there is information available that shows that Apex is legitimately behind on these things vs other games, or if the issues with netcode are...... user perception? I think that's the nice way to phrase it.