Laptops Laptop overheating when connected to dock

nitin_g3

Adept
I have below laptop and thunderbolt dock from dell

Laptop: Latitude 7430 (i7)
Dock: Dell WD19TB

My laptop heats a lot (stays around 100 degeress), especially when on zoom calls. Strange thing is, the heating issue is not there when dock is disconnected.

What I've tried without any fix.
  1. Replaced thermal paste with Gelid extreme.
  2. Kept power cable also plugged in, this seems to lower the temps a bit, but not a permanent solution since whole purpose of getting the dock was to keep the desk wire free.