Question Building a new pc and have some questions

[dishypoo]

So I decided I was going to buy prebuilt since prices are out of control for some parts. I was going to go with through corsair but then they led me to origin. So my first quesiton is can anyone give me reasons as to why I should or shouldnt pruchase through them?

Second is this is my build and I just want some input as to anything I might change. I'll be gaming and streaming and MAYBE a little video editing here and there.

Case : Corsair 4000X
Exterior Color : White
Interior Lighting : iCUE RGB with CORSAIR NODE PRO
Current Special Offer : Free US Ground Shipping $50 value
Processors : Intel Core i9 10850K 10-Core 3.6GHz (5.1GHz TurboBoost)
Motherboard : MSI Z590-A PRO
Memory : 16GB CORSAIR VENGEANCE 3200MHz (2x8GB)
System Cooling : CORSAIR H100i PRO XT RGB
System Fans : CORSAIR SP120 PRO Performance iCUE RGB controlled by iCUE software
Graphics Cards : NVIDIA 8GB GeForce RTX 3070
Operating System : MS Windows 10 Home
Operating System Drive : 960GB Force MP510 NVMe PCIe M.2 SSD
RAID : No RAID
Hard Drive : 2TB Western Digital Caviar Black
Hard Drive : 1
Power Supply : CORSAIR 750 RMx SERIES PLUS GOLD
Power Supply Sleeved Cable : No Sleeved Cable
Audio : Integrated High-Definition Audio
Networking : Onboard Network Port

I know I am spending more than I should going prebuilt but since videocards are hard to come by I dont know what else to do.

 

[Why_Me]

Looks decent enough.