This one however is a custom build but still from PCSpecialist (they're pretty great):
Intel i9-10900X (3.7Ghz) 19.25MB Cache
ASUS ROG Strix X299-E Gaming II
64GB Corsair Vengeance RGB Pro DDR4
3200MHz (4 x 16GB)
11GB NVIDIA GEFORCE RTX 2080 Ti
2x 4TB Samsung 860 QVO 2.5" SSD
1TB Samsung 970 EVO Plus M.2
Corsair 850W RMx Series Modular 80 Plus Gold
Corsair H150i PRO Hydro Series High Perf.
Elgato Game Capture 4K60Pro Mk.2
Intel i7-8700K (3.7Ghz) 12MB Cache
ASUS TUF Z370-Plus Gaming II
16GB Corsair Vengeance DDR4
2400MHz (2 x 8GB)
8GB NVIDIA GEFORCE RTX 2070
1TB Seagate Barracuda SATA-III 3.5" HDD
256GB Intel 760p M.2 NVMe SSD
Corsair 550W TXm Series 80 Plus Gold
CoolerMaster MasterLiquid Lite 120
Elgato Game Capture 4K60Pro
I use a whole array of software, some are necessities, some are quality of life.
Let's break them up in to categories:
I capture desktop gameplay using OBS Studio and console gameplay with Elgato 4k Capture Utility.
In the editing phase I solely use Adobe Premiere Pro and occasionally dabble in Adobe After Effects too.
For editing thumbnails / pictures, you've probably already guessed it, Adobe Photoshop is what I use.
Most of my audio recordings are done using Audacity but cleaning up background noise or general editing is done in Adobe Audition
Quality Of Life
For resizing windowed games to a particular size, I use a handy tool called Sizer
(for example, if you want Minecraft to be exactly 1080p then make a preset for 1936x1119px, this will account for the Windows 10 program header/border)
I've recently started using Opera GX as my web browser because it has additional options to limit how much power it's using (sorry Google, you're just a bit greedy!)
For my livestreams to prevent the audio peaking and going distorted, I've implemented Loudmax which is a simple VST Plugin that works with OBS