CS:GO SDK Clip vs Player Clip Brush Texture - Which One Should You Use

Clip and Player Clip brushes are very important in Source mapping but I was confused which one to use?

Clip or Player Clip?

I decompiled a few maps and found that one map used "clip" (CS_Militia).

While another used all "player clip" (CS_Office).

It seemed arbitrary.

But after researching and testing here is what I found

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