ok the problem is i used the following combo,

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https://www.amazon.com/gp/product/B07ZGG8LWN/ref=ppx_yo_dt_b_asin_title_o01_s00?ie=UTF8&psc=1

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https://www.amazon.com/gp/product/B00Z9X4GLW/ref=ppx_yo_dt_b_asin_title_o02_s00?ie=UTF8&psc=1

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https://www.walmart.com/ip/Laptop-External-Independent-Video-Card-Graphics-Dock-Mini-PCI-E-Version-for-V8-0-EXP-GDC-Beast/794678800

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i wanted to get ngff to hmdi but i didn't know if that would work so i got this instead also , i did look around and a post said it would work but it was outdated , to avoid confusion i just got this combo and was hoping it work but i guess not. and i'm using a monitor a acer 144 hz

i'm thinking of buying this

https://www.amazon.com/uni-Thunderbolt-Compatible-MacBook-Surface/dp/B075V5JK36/ref=sr_1_2_sspa?dchild=1&keywords=thunderbolt+3+to+hdmi&qid=1597876470&sr=8-2-spons&psc=1&spLa=ZW5jcnlwdGVkUXVhbGlmaWVyPUEyV0NJR0ZBSkUwSzVMJmVuY3J5cHRlZElkPUEwMzYxNzY1MlRFQko4TEgyRDhXUiZlbmNyeXB0ZWRBZElkPUEwNzI5NTE4MkUxRlUxQzBYWFMyOCZ3aWRnZXROYW1lPXNwX2F0ZiZhY3Rpb249Y2xpY2tSZWRpcmVjdCZkb05vdExvZ0NsaWNrPXRydWU=

but to be clear the combo didn't work it power the exp gdc but it didn't have any display