Does this display use any of the PCIe bandwidth from the MacBook Pro's Thunderbolt controller?

I.e. Can another Thunderbolt 3 device be connected to the other Thunderbolt port on the same side of the MacBook Pro and receive all 4 lanes of PCIe?

LG UltraFine 5K Display

LG UltraFine 5K Display

Product No Longer Available

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