egpu laptop hp External Graphics card for HP laptop

[soham0243]

Hello, I have an HP laptop (model: 15-bs146TU). It comes with a WLAN adapter (Realtek RTL8723DE) connected to PCI express slot. I want to remove the adapter and use it for an external graphics card using exp gdc. I have several question regarding this - 

1. How do I supposed to know which adapter I need (mini PCIe or PCIe 16x)?
2. I came across a thread on HP website (link: https://h30434.www3.hp.com/t5/Notebook-Hardware-and-Upgrade-Questions/Mini-PCI-E-Slot-Question/td-p/5495544) but how am I supposed to know whether I have 'real' mini PCIe or just an ssd or wlan reserved port(sounds like all thunderbolt is usb-c but converse is not true) ?

NOTE: I have saved all info from lspci in linux termimal in the attached txt file. I want to know whether I can attach an eGPU with my laptop before buying it. (since it's non-refundable)

lspci.txt