Look at the below areas I highlighted from each image posted a few pages back of the same Argonne spot, Pre and Post patch. To my eyes (view full-size), the Post-Patch screenshot;
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clearly lacks tessellation on muddy terrain path – see bottom left highlighted area
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lacks previous (pre-patch) anisotropic filtering/textures – see far right highlight on rock formation textures
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terrain quality/decoration lowered, notice missing foliage and plants – see top left highlight above the muddy path
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HBAO/shadow resolution or shadow-draw distance lowered, notice cluster of plants – see middle highlight above weapon