These are my go to guides that I use all the time.
Single GPU Passthrough using KVM/VFIO video guide by BlandManStudios
Complete Single GPU Passthrough guide by QaidVoid
PCI Passthrough via OVMF ArchWiki
VFIO-GPU-PASSTHROUGH-KVM-GUIDE by ethannji
Installing DWM (Dynamic Window Manager) by David Sadler
Configuring Zsh without dependencies
Network config during manual Arch install