Troubleshooting steps taken:

• Updated BIOS from A10 to A14 (Newest version)
• Tried both UEFI and legacy boot options 
  • Using the proper settings to create A legacy boot drive
• Verified USB boot is enabled in BIOS and all USB ports are enabled
• Drive does appear in the boot menu of another device.
• Tried with and without "Add fixes for old BIOSes" ticked in Rufus.
• Tried a legacy boot Windows installation USB drive with same result.

Relevant info:

• BIOS A14 (Newest)
• Arch Linux Installation ISO
• Rufus 3.17.1846
• BIOS updated by installing Windows 10 to an SSD on another machine and installing it in the Optiplex.
  • Note Windows had to be installed for legacy boot to boot in the Optiplex.

Any help/suggestions are much appreciated.