Is it possible to use a bootable OS drive as the primary disk for hackintosh?

I apologize if I have got the terms all wrong above and have everyone confused. But I haven't seen someone do this.

So I have a Thunderbolt 3 drive on which I have a partition with macOS Mojave that I use for running old programs. I use this with my MacBook time to time by changing boot disk.

I want to know if I can use this drive with my PC as a hackintosh installation. The partition on this drive was made using Disk Utility, and then the entire installation was done using the Install App from Catalina on the MacBook.

So in essence what I'm asking is using the PC as the computer for booting into Mojave that's fully installed on the T3 Drive.

My PC Specs are as follows: - ASRock Z390 m-ITX (it has a Thunderbolt 3 port) - i9-9900K, 32GB Trident Z RGB, RTX 2080Ti - Samsung 1TB 970 Evo Plus, 2TB 860 Pro. Note: Both of them are formatted in GUID already, so maybe we can create a partition on them for the Hackintosh to avoid the T3 Drive boot and go the usual way.

I know that RTX isn't supported by any macOS. So I'm also wondering if whenever I boot into macOS, I can before hand remove the RTX power connectors so that only Intel iGPU is available, or using the Hackintosh software (Unibeast, we only download the Intel gpu drivers). Perhaps when Big Navi comes, I can add the GPU power to hackintosh installation.

Thanks!