You don't need two PC's to stream to be a successful streamer, but it does have 2 big advantages:
As a teenager, WackyJacky101 played a great deal of WoW. He was later was introduced to PUBG by his friends that he played Battlefield 1 with. After he tried it, it immediately became his main game.
WackyJacky101 uses the SteelSeries Sensei Ten gaming mouse.
WackyJacky101 uses the SteelSeries Arctis Pro Wireless gaming headset.
WackyJacky101 uses the Acer Predator XB271HU and the BenQ ZOWIE XL2740 and the AOC AG273QZ gaming monitor.
WackyJacky101 uses the SteelSeries Apex Pro gaming keyboard.
For gaming, WackyJacky101 uses a AMD Ryzen 9 5950X CPU with a NVIDIA GeForce RTX 2080 Ti GPU. He uses a GIGABYTE Z370 AORUS Gaming 7 motherboard. WackyJacky101 uses CORSAIR Vengeance LPX 32GB memory and a Samsung 970 EVO 1TB SSD for storage.
For streaming, WackyJacky101 uses a Intel Core i9-9900K CPU with a NVIDIA GeForce RTX 2070 GPU. WackyJacky101 uses CORSAIR Vengeance LPX 16GB memory and a Samsung 850 EVO 500GB SSD for storage.