Hi Michael, thanks for sending the crash report.

Yes it looks like the video driver is throwing an assert.

I found a reference to this crash, maybe the configuration information in the post will help you to solve it:
https://www.reddit.com/r/hackintosh/comments/jpbsot/opencore_063_comet_lake_msi_mpg_z490_gaming_plus/

Then yes the other thing is that it's using the Intel integrated graphics instead of the RX5700. Either the RX5700 doesn't have a driver set up or it's ordered or prioritized in some way different from a regular macOS install.

- Michael

The way the 2 graphics cards in macOS is supposed to work is that when an app creates an OpenGL context the system is supposed to automatically use the discrete GPU instead of the Intel integrated GPU unless the app has specifically requested to allow the integrated one (which MoI does not do):
https://developer.apple.com/library/archive/qa/qa1734/_index.html

Maybe you'll need to set an option in the OS as described here:
https://nathansnelgrove.com/how-to-force-your-macbook-pro-to-use-its-discrete-graphics-card-when-its-plugged-in/

Also this utility may help:
https://gfx.io/
https://www.howtogeek.com/288346/how-to-tell-which-graphics-chip-your-macbook-is-using-and-switch-it/

And there might be another setting for it here:
https://osxdaily.com/2017/01/08/disable-gpu-switching-macbook-pro/

- Michael

I managed to sort it out :)

Apparently it was a setting in the bios which I needed to disable...
Namely : IGPU-Multi-Monitor
This is the guide I followed for my build, and that setting is mentioned under the "imac 20.2-specific settings" paragraph :
https://github.com/SchmockLord/Hackintosh-Intel-i9-10900k-AsRock-Z490-Phantom-ITX-TB3/blob/master/Docs/BIOS-settings/bios-settings.md

Thanks for your input.

Michael

That's great I'm glad it's working now!

- Michael