To continue, flip to Side B:

Apple APL1027 339S00606 T2 coprocessor

Apple 338S00342-A0 (likely Apple PMIC)

Intel C621 Chipset

6x Diodes Incorporated PI3DBS16 PCIe Thunderbolt 3 Signal Mux

10x Diodes Incorporated PI3EQX8904 PCIe ReDriver

2x Diodes Incorporated PI3PCIE3242A PCIe switch, and 2x Diodes Incorporated PI3PCIE3442A PCIe switch

NXP L6524 general purpose I/O expander