>>106644393
Alright. Here's my suggestions: https://de.pcpartpicker.com/list/wyPth7
The 9800X3D is just not worth what AMD is charging for it over a tray 7800X3D IMO (only 3% uplift @ 1440p for over an extra 100€), see here:
https://www.techpowerup.com/review/amd-ryzen-7-9800x3d/27.html
I'd save your money with the "last gen" X3D chip right now and upgrade to an end-game 11800X3D later on when AMD ups the core count and gives an IPC gain worth your time/money. To put it another way you haven't maxxed out your GPU yet so there's little point in maxxing out your CPU.

Saved you a bit of money on the RAM/Mobo (there's little difference between the B650 & B750 chipsets, but check it's feature set to confirm it has everythign you want).

4TB NVMEs carry a premium while 2TB models have the best €/TB value at the moment (remember your board has 3x slots if you need more space later). But if you have a larger boot drive the UD90 would still save you a chunk of money:
https://de.pcpartpicker.com/product/2BvD4D/silicon-power-ud90-4-tb-m2-2280-pcie-40-x4-nvme-solid-state-drive-sp04kgbp44ud9005

Likewise the Toshiba 18TB is a poor €/TB value when for 15€ more you can get an extra 6TB.

Cases are subjective, but it's a fine selection.

Saved you a bit on the PSU with a quality unit from MSI that has a 10-Year warranty.

>I have too much static content going on and i hate the idea of buying something of which i know that it will degrade and is shit for text/excel stuff or i would go with an oled. I'd prefer the PG27AQN but I can't justify the price as it's still around 800 in the EU.
For less than the price of the 27GR83 you might also consider the MSI MAG 274UPF E2 (4K@160Hz IPS):
https://de.pcpartpicker.com/product/q9fxFT/msi-mag-274upf-e2-270-3840-x-2160-160-hz-monitor-mag-274upf-e2
https://www.rtings.com/monitor/reviews/msi/mag-274upf
Your GPU could handle it and you might appreciate the PPI/sharpness more than the refresh rate.