Ventura Final i225V is covered in a number of posts, dating back to z490 Monterey:
• if your i225V RevisionID is 3+ with proper vendor ID, you can disable all previous i225V hacks and enable AppleVTD and it will work native.
• If you have RevisionID 2 or vendor ID is malformed, you can inject a Monterey i225V kext, or update your i225V controller firmware.
I have tried both and both work—my z590 i225V is Rev 3 with correct vendor so I didn't have to struggle with finding blobs to do firmware update. UNFORTUNATELY Since orig posts, some necessary blobs have disappeared, so you might have easier time with injection approach.
I've pulled all my findings together in this post:
I have ordered this mainboard Asus TUF Gaming Z590 Plus WiFi too. Right now I'm preparing my OC EFI already for an easy start. For the built-in Ethernet I225-V in Ventura I had to use: DeviceProperties: PciRoot(0x0)/Pci(0x1C,0x7)/Pci(0x0,0x0) -> device-id: F3150000 That is all you need. It...
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Hth