Being shot around corners and thru doors

I have read it multiple times in the past.

Basically they are confirming that they apply artificial lag to players (aka lag compensation) to give other players advantage.

And this line:

"But the nonsense is distributed symmetrically"

Is a lie.

With every fight the lag compensation changes. This means some algorithm decides for you how good You can be in certain engagements.

In one fight I can easily maneuver in other I can barely move! All on low ping servers with no connection issues.

This is how You manipulate the odds.