I want to get a new PC and I could use some advice.

My laptop just isn't really good nowadays (or the settings are beyond screwed), and its slowly but surely dying (battery's dead and the keyboard is malfunctioning), so I want to get something new
The specs of what I am looking at are as follows:
Ryzen 5 5600G
Thermaltake Toughair 310 CPU Cooler
Asus Radeon 6700 XT Dual
32GB of Trident Z DDR4-3200 RAM (I can get 16GB of DDR4-4000 for the same price if thats better)
ASUS ROG Strix B550-F Gaming WIFI II
be quiet! System Power 10 750W
2TB Kingston NV2 NVME 4.0 SSD
Corsair 4000D Airflow

This is a list I've created based on a prebuild I've configured.
The total price is 1169€ (1366€ for the prebuild).
The only difference is that instead of a wifi mainboard the Prebuild had a seperate module, but thats like a 20 dollar difference.

First of all:
How recommendable is this setup?
I want to be at least somewhat 'safe' for the next 4 years or so.
Second: Go with the prebuild or build it myself?
I have no experience building PCs, and I am afraid of doing something wrong.
Is it better to spend 200€ more and have a warranty and a guarantee it works,
or save 200€ and risk breaking something?

Thank you for reading this, and feel free to suggest better options for parts.

(part prices sourced from geizhals.at, a site that compares prices from different online shops)

 

Stay with 32 gb ram, beamng would run better on 32gb, specially with bigger maps and loads of cars

 

was planning to do some blender rendering as well, so yeah I'd like to stick with 32GB