I'm going to answer my own post as I'm sure some are going to learn from my misadventures!
If you have the same system use this post. OC 6.9
Everything is there
Gigabyte Z490 Vision D (Thunderbolt 3) + i5-10400 + AMD RX 580
As of May 2021 : Use the Gigabyte Z490 Vision D BIOS F5.x the current version F20 TB3 ports are not working!
1 : In the case of people getting the "Thunderbolt 3 devices are not supported on this Mac" it is stated many times all over but needs to be drilled home :
A USB C cable is NOT a Thunderbolt 3 cable
2 : The UAD Thunderbolt 1 option card is currently not functioning with the SSDT-TB3HP.aml I swapped out my UAD Apollo QUAD (1st generation) TB-1 card with a new Apollo TB-3 card and BAM! there it is! TB-1 devices may not work with the this build as stated in CaseySJ's guide!
It should be pointed out the old Apollo TB-1 card works perfectly with the onboard TB-1 ports on a Gigabyte GA-Z77X-UP5-TH
3 : The SSDT-TB3HP.aml is also working for thew Satellite Quad TB-2 using either the Apple or Startech TB-3 to TB -2 adapters. (UAD recommends the Startech TB3TB2ADAPT )
4 : The Bios settings work as recommend in CaseySJ's amazing guide
5 : For now nothing appears under the Thunderbolt/USB4 Tree on the system information, the information does however appear under the PCI tree (See snapshot)
I am currently working on a solution to 96kHz garbled distorted audio in Logic X 10.6.2
If I use the UAD console only with internal clock I can use 44.1 48 88.2 and 96Khz and insert plugins and hear audio fine. If I am in Logic 10.6.2 and change the project settings to anything over 48Khz ie 88.2 96Khz the audio is garbled and distorted. Generally I record @48Khz anyway so it's not a 911 but if anyone has insight on it drop a note. I have tried to switch Logic output back and forth from internal audio back to Universal Audio.... no change.