Hi! It appears I am running on BIOS 3.05. After checking that 3.06 delivered Thunderbolt compliance, that is most likely the problem. I did check dmesg but didn’t see “GPU has fallen off the bus”. However, I did see xHCI host controller not responding and couldn’t allocate usb_device and has similar output to what was found in this post. I will update that and let you know the situation from there
UPDATE: It worked! I went into my Windows partition and installed the new 3.06 update and am now able to run X without any weird freezing or crashing provided that I do the trick of plugging in my eGPU at the bootloader menu. Thanks for pointing me in the right direction! Wayland is also running a lot better too!