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Why is there a difference in RF tuning component configuration between QFN (pi network) and WLCSP (T network) package?

Hi,

We have been using nRF52840 in QFN package in a BLE application. Due to size considerations, we want to upgrade to the WLCSP. I saw that the tuning network is different for both the packages.QFN packageWLCSP

This thread suggests it has to do with the tuning network.

I am using a chip antenna (2450AT42B100 and 2450AT18D0100) and a Pi network to tune the antenna. My question is, do I need to change the tuning network to T if I want to use this package?