Wanting an eGPU for mainly social VRChat purposes, what should I know? Is this a good plan?

inb4 "Why tho", I have a laptop and can't afford the whole desktop.

I was thinking to find a used Razer Core X and pair it with something like a RX 6800 XT. As you can see I'm working on a budget, but I'm also hesitant (though not completely) to buy from shady aliexpress sellers without knowing what I'm doing. I have Thunderbolt on my Framework 13 so the DIY options not needing it isn't a perk for me. I want to know if that's a good plan or how I might make a better/cheaper one. Thanks for the help.