I wanted to test the compatibility of some programs so I tried installing macOS Catalina on a Fennec Hackintosh System with the date in 2025. Naturally, it failed. I then had to use the workaround I implemented when I was installing OS X Mavericks.
1. I grabbed a copy of OS X from the Internet. (2 hours over Wi-Fi)
2. I followed the tips in creating a USB Installer. (20 minutes)
3. I then use the release date workaround to install successfully. (45 minutes)
4. I completed the Fennec Hackintosh System.
With Catalina now installed, this gave me access to download Big Sur.