Beat me to it, noticed this yesterday.
I've also found that shader content seems to be downloaded every time I start the steam client for the SAME games that I've already downloaded the shader cache for MANY times.
Is this normal? and if so, WHY?!?!?
Closing as this is the intended behavior when Steam's shader pre-caching is enabled to allow background shader processing some time to process the pre-caching content while the game content update downloads.
Nothing extracted yet.
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