Learning 1. d4 2. c4 Slav Defense: Modern, Quiet, Pin Defense

I see this move often enough that I should have a look at where my pieces go. Specifically I have noticed that I am afraid to unpin myself and allow Bxf3, gxf3 but that in a few games I have looked at white is not afraid of this and black doesn't seem to take the opportunity.

 (Bxf3, gxf3)

(Qb3, Bxf3, Qxb7)

(Qb3, Qc7, no Bxf3)

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